explain xkcd - User contributions [en]

Talk:1649: Pipelines

2016-03-02T19:20:36Z

188.114.106.47:

No discussion yet? Strange ...

Anyway, the title text "and we'll all just show up with a bucket each day to take our share of the resulting smoothie" reminds me of this bit near the end of Monty Python's "The Meaning of Life": https://www.youtube.com/watch?v=Zx0ME65y72E (Warning: not for the squeamish.) --[[User:RenniePet|RenniePet]] ([[User talk:RenniePet|talk]]) 16:21, 29 February 2016 (UTC)
:This comic came out very late today. [[User:Mikemk|Mikemk]] ([[User talk:Mikemk|talk]]) 19:16, 29 February 2016 (UTC)

I tried to discuss earlier but did not have permission to "create a page." Now I can comment, I assume because you created the page? Hrmm. Anyway, my comment is that the honey pipe seems so unreasonably large that I'm curious of the source and the math. I found figures for honey production in US, in pounds, did not convert it to volume or look up other values but it's hard to imagine it is correct in relation to ketchup, mustard, and mayo. Grocery stores sell honey in smaller bottles and much less often, than the others. Factory bakers and makers of cereal use a little honey but not much; it's so much more expensive than corn syrup or even sugar. Restaurants use all those other products at much higher volumes. McDonald's has honey at breakfast for biscuits but it's rarely requested, versus how many gallons per day of ketchup they must use per store, just on burgers, let alone packets given away. [[Special:Contributions/108.162.216.62|108.162.216.62]] 17:24, 29 February 2016 (UTC)wrybred
:Please (once you get permission to do create pages) do not try to create pages like this yourself. There is a bot that will do that when the comic has been out for a short while. And this comic was very late. And when people do it themselves there often goes a lot wrong with the functionality. And contributions may be lost when an admin has to fix this later. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 22:00, 29 February 2016 (UTC)

There is so much wrong with "cheese" labeled as a fluid...
Flavio from Switzerland {{unsigned ip|141.101.104.33}}
:Since there are both glass (not a solid) and meat (mostly solid) and cement, only liquid for a short time, then the question is if cheese (once milk) could not be measured as a liquid without being more strange than other substances in the table? I also think that some (strange to me) people like to eat cheese that is runny ;-p --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 22:00, 29 February 2016 (UTC)

I find it appropriate and satisfying that tea and sugar are the same size :) [[Special:Contributions/108.162.245.180|108.162.245.180]] 18:38, 29 February 2016 (UTC)

Glass is a reference to the common misconception that glass is a slow moving liquid. (Spoiler: It's not)
[[Special:Contributions/141.101.106.161|141.101.106.161]] 19:31, 29 February 2016 (UTC)
:I believe he has mentioned this fact in a previous comic... One where he urges us to look at Wikipedias page for common misconceptions before going to a party and telling everyone that glass is a liquid! ;-) --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 22:00, 29 February 2016 (UTC)

To give an example: Americans drunk just under [https://www.wineinstitute.org/resources/statistics/article86 900 million gallons of wine in 2014], or just over 4 million cubic metres per year.
There are 31557600 seconds in a year, so about America drinks 0.13 m3/s. If the pipe is flowing at 4m/s The pipe must have an area of 0.032m^2 = 320cm^2. The radius of a pipe of area 320cm^2 is 10cm. The wine pipe should have a diameter of 20cm. How about a table of calulated diameters [[Special:Contributions/141.101.70.91|141.101.70.91]] 19:38, 29 February 2016 (UTC)
:Fantastic. I did some recalculations of the numbers posted as a transcript, at the moment moved to a trivia section when I posted a real transcript. There was an error in the scaling which I have now fixed. And right now the number for wine diameter says 20 cm. I did just check the picture and I disagree a little as I come to 11.5 mm on the picture which would then make it 23 cm in diameter, but that would be close enough to fit with this wine calculation withing the uncertainty of both calculations measurement and Randall's accuracy. And yes there should be such a table as you mentions.
::Table now added. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 22:33, 29 February 2016 (UTC)
:But what about the additional wine produced in America? You only took into account the wine consumed. --[[User:Effy|Effy]] ([[User talk:Effy|talk]]) 10:15, 1 March 2016 (UTC)
:Also, I recalculated from the article you linked to and got a figure much closer to 18 cm. Maybe check your calculations? When I take 893M gallons and convert to cubic meters I get about 3.38 million, not just over 4 million. This would perhaps suggest that each pipe in the comic is either matter produced OR consumed, but not both added together. --[[User:Effy|Effy]] ([[User talk:Effy|talk]]) 10:33, 1 March 2016 (UTC)
:One last comment: I corrected the table per above, I hope that's okay. However, I noticed that if we use wine produced instead of wine consumed, the pipe comes out to 17.9 cm instead of 18.5. Perhaps that was what the pipe was intended for? (I guess the extra wine will need to imported with a transatlantic pipeline.) See: [https://en.wikipedia.org/wiki/List_of_wine-producing_countries List of wine-producing countries]. --[[User:Effy|Effy]] ([[User talk:Effy|talk]]) 10:39, 1 March 2016 (UTC)

Thanks for the scale check. It's always nice to know someone else looked at this stuff. BTW - would suggest that you not compare "size" to "calculated size" - but rather multiply these diameters by 4 m/s and output "calculated annual output" v. "Annual Output" - any source that can be found for annual outputs. This would be a bit more elegant as sources can be verified instantaneously. (i.e. using the 23 cm wine for example - "Annual Output" would be 4 million cubic meters, "Calculated Annual Output" would be 5.24 million cubic meters. --[[Special:Contributions/188.114.106.47|188.114.106.47]] 23:20, 29 February 2016 (UTC)

It's not blonde, it's albino. [[Special:Contributions/173.245.63.144|173.245.63.144]] 23:28, 29 February 2016 (UTC)

How are we defining a typical computer screen? How many dots per inch? And where do we get that data from? Are we gonna have to do the math ourselves on one of the pipes to figure out what DPI setting Randal is suggesting? Or has he said somewhere? [[User:Trlkly|Trlkly]] ([[User talk:Trlkly|talk]]) 23:58, 29 February 2016 (UTC)

I'm not sure the initial size assumptions are very fair. If not-Megan is 5 feet 11, she's in the 99.4% percentile for American women. So perhaps the initial measurement of 9cm should be smaller for an "average computer". Here's a percentile height checker. https://tall.life/height-percentile-calculator-age-country/
[[User:Bgaskin|Bgaskin]] ([[User talk:Bgaskin|talk]]) 23:50, 1 March 2016 (UTC)

The Trivia section speaks of Leap Day comics, describing another as being "also like this one on a Friday in 2008". That implies Leap Day yesterday was a Friday. It was not, Leap Day was a Monday this year (as was the release date of this comic). ???? Other phrasing in the Trivia section uses similarly incorrect phrasing, leading me to question the validity of the declaration that the next Leap Day Release Date is in 20 years. (I personally can't check right now). - NiceGuy1 [[Special:Contributions/108.162.218.148|108.162.218.148]] 06:44, 2 March 2016 (UTC)
: I note that the Trivia sections of [[390: Nightmares]] and [[1023: Late-Night PBS]] are similarly garbled with the same incorrect information. I also note that UTC timestamps on here are 5:15 ahead of Eastern time where I am. I thought UTC was the middle of the ocean, this is 15 minutes past Greenwich. Even if the number of hours is right, the 15 minutes shouldn't be - NiceGuy1 [[Special:Contributions/108.162.218.148|108.162.218.148]] 07:51, 2 March 2016 (UTC)

Interesting that Randall doesn't include a pipe for air, a fluid consumed in great quantities in the country. [[Special:Contributions/162.158.255.74|162.158.255.74]] 11:48, 2 March 2016 (UTC)

Checking some numbers - Meat seems consistent with [http://www.ers.usda.gov/media/286014/sb965f_1_.pdf this USDA report] (I got ''32.1 GL''), but Milk Consumption (''29.8 GL'') was way off - mainly I think because it was based on consumption - not production. Using the numbers listed of "all dairy products" is ''86.3 GL'', which isn't right either - but closer. Cheese (''4.44 GL'') was also off. In the small pipes, based upon a report [https://ladyofthecakes.wordpress.com/2013/09/06/who-eats-the-most-mayonnaise-ketchup-mustard/ here], Mayo (''0.656 GL''), Ketchup (''0.687 GL'') were way off. Mustard (''0.106 GL'') wasn't that far off. Further investigation is coming as I find the time, but it seems that production numbers were used more than consumption numbers - (consistent with the note of "pipes overlap" - obviously you can't consume something that's been used in something else). --[[Special:Contributions/188.114.106.47|188.114.106.47]] 18:02, 2 March 2016 (UTC)
: Ok after review of Saliva Pools 500 mL/day figure (stated within this last month), the population should product 59.9 GL of Saliva. Comparing with the 71.6 GL listed shows that the saliva pipe should have a diameter of 77.8 cm. Applying this scaling to "not-meg" gives a height of 165 cm - which matches [https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=average%20height%20of%20a%20woman with what Google says] for Average woman height. I'll rescale everything in the lower panel to match unless I see a disagreement. --[[Special:Contributions/188.114.106.47|188.114.106.47]] 19:20, 2 March 2016 (UTC)

Talk:1649: Pipelines

2016-03-02T19:20:15Z

188.114.106.47:

1649: Pipelines

2016-03-02T18:53:32Z

188.114.106.47: /* Trivia */

{{comic
| number = 1649
| date = February 29, 2016
| title = Pipelines
| image = pipelines.png
| titletext = In the future, every single pipeline will lead to the bowl of a giant blender, and we'll all just show up with a bucket each day to take our share of the resulting smoothie.
}}

==Explanation==
{{incomplete|The table with all the items should be filled out with explanations etc. and the diameter should be calculated from real data (with references).}}

Follows a similar idea to the [[what if?]] {{what if|147|Niagara Straw}}, (from three days before this comic's release), where the entire water flow over {{w|Niagara Falls}} is imagined to flow through a straw (i.e. 7 mm diameter with disastrous results).

In this comic [[Randall]] imagines what size pipes are necessary to carry US domestic production/consumption of various fluids if the flow rate were fixed at 4 meters per second. Randall notes that "many pipes would overlap", owing to the fact that consumption of one item as corn syrup would be due to the production of one of the others, in this case soda pop (another example, than the previous one which is actually mentioned in the comic, could be gasoline which is produced from petroleum ).

The top panel is in [http://store-xkcd-com.myshopify.com/products/actual-size-stickers actual size] (something Randall often jokes about but here he means it). This means that if you look at the image in actual size (or measure lengths in the full size image) then the measured diameter is the diameter Randall has calculated the pipe should be, based on his data for the consumption of these substances.

In the second panel the pipes are too big for his drawing. To indicate the scale he has both inserted a human (appearance like [[Megan]], but with blonde hair, i.e. not Megan) and the top panel has been shrunk down to indicate how much larger the bottom panel is (this is similar to the link between the panels in [[980: Money]]). Using the size of the top panel and the smaller insert, it can be found that the scale is 20:1. (The woman is 9 cm tall in the image, which makes her 180 cm -- 5 feet 11 inches -- in "real life"). The pipe next to her for gasoline would have a diameter of 2.2 m.

Since the caption at the top mentions both fluid produced and consumed in the US it becomes very difficult to find out which number Randall uses. For instance the consumption of wine in the US and the production of wine in the US is not necessarily the same as wine is both imported and exported. Should there then be two pipes? Unlike similar comics (like Money mentioned above) there are no references for where Randall has the data for this comic.

As usual with xkcd, the absurdity -- and improbability -- of routing the entirety of each fluid through a single pipe at any point is the source of humor. In addition, despite Randall's stated assumption that all the fluids are magically flowing at the same rate as public water (4 meters per second), many could never actually do so; some "fluids" shown are too viscous (e.g. peanut butter, Silly Putty, meat), adhesive (e.g. maple syrup), or thermally impractical (e.g. glass, cheese, ice cream and yogurt). Lastly, many are just plain zany (e.g. saliva a reference to another what if? {{what if|144|Saliva Pool}}). Note that at the bottom of the last panel there is a much larger pipe for the tap water used by the public. All substances are listed below in the [[#Table|table]].

The title text refers to a possible future based on the idea of this comic in which all the pipes with the above mentioned fluids will actually lead into the same hole as shown in the top right panel. This hole will then be the bowl of a giant blender that mixes all these substances together to a ''{{w|smoothie}}''. The future people will then just come up to this blender and get a bucket full of this mix each day. In reality, this would be an impractical method of getting all of the fluids. Setting the logistical considerations of such a setup aside, this would mean that ketchup and salsa, both intended for human consumption, would be mixed with fluids which are harmful to humans, such as windshield wiper fluid.

Note: "Soup" has been left out, and it might have been expected in this comic due to the similarity to this system with [[Beret Guy|Beret Guy's]] use of a "soup outlet" as an entrepreneur in [[1293: Job Interview]]. It is probably a larger pipeline than salsa and possibly even ketchup. However, there are many different varieties of soups, and most soup is probably not bought finished, both very good reasons to not include it in the chart. But still the idea of having a soup outlet is very similar to this comic.

===Table===
*All the substances are listed here in the "reading" order also used in the transcript.
*The diameter is for the inner part of the tube.
*GL is for GigaLiters - or Billion Liters. This is strictly the annual discharge of the Size (cm) column at 4 m/s.
{| class="wikitable sortable"
|-
|+ All substances with size as found in the picture, vs. size calculated from public information
|-
! scope="col" | Substance
! scope="col" | Size (cm)
! scope="col" | Annual Discharge (GL)
! scope="col" | Explanation
|-
| {{w|Toothpaste}}
| 3.5
| 0.121
| In the title text of [[1599: Water Delivery]] Randall claims that he as a child could not understand why there were no toothpaste pipe to his house when there was one for water... Giving this is at the top, this is a clear allusion to this comment. Calculation is based on 542 g/year per capita consumption of toothpaste. Source: [https://www.google.co.il/search?q=toothpaste+consumption+by+country&num=100&espv=2&rlz=1C1VFKB_enIL627IL627&tbm=isch&imgil=2wpGcxkoKlCvAM%253A%253BvrrYrXTGlziE6M%253Bhttp%25253A%25252F%25252Fwww.sanasecurities.com%25252Ftop-story%25252Ffuture-prospect-indian-oral-care-industry&source=iu&pf=m&fir=2wpGcxkoKlCvAM%253A%252CvrrYrXTGlziE6M%252C_&usg=__g9B9_HQ-jLim5P25Ov5d6l6BiNk%3D&biw=1920&bih=955&ved=0ahUKEwjLiMn-op_LAhVD4XIKHcvPCMsQyjcIJA&ei=I27VVovrEsPCywPLn6PYDA#imgrc=2wpGcxkoKlCvAM%3A here].
The year the graph was made in is estimated to be 2013, and 316.5 million estimated 2013 US population to calculate the diameter above.
|-
| {{w|Nail polish}}
| 0.4
| 0.000159
| Much less than acetone, which is used as a nail polish remover.
|-
| {{w|Windshield washer fluid}}
| 5.6
| 0.311
|
|-
| {{w|Silly putty}}
| 0.1
| 0.0000991
| Smallest diameter
|-
| {{w|Shampoo}}
| 4
| 0.159
|
|-
| {{w|Honey}}
| 5.2
| 0.268
|
|-
| {{w|Blood donation|Donated blood}}
| 0.9
| 0.00803
|
|-
| {{w|Vanilla}}
| 0.4
| 0.000159
| Not the ice but the spice (which is black as the substance in the vanilla pipe).
|-
| {{w|Ketchup}}
| 5.2
| 0.268
|
|-
| {{w|Salsa (sauce)|Salsa}}
| 3.6
| 0.128
|
|-
| {{w|Sunscreen}}
| 1.35
| 0.0181
|
|-
| {{w|Personal lubricant}}
| 0.65
| 0.00419
| Aka lube
|-
| {{w|LCD liquid}}
| 0.26
| 0.000670
| For {{w|Liquid-crystal display}}
|-
| {{w|Mayonnaise|Mayo}}
| 4.4
| 0.192
| Or mayonnaise
|-
| {{w|Printer ink}}
| 1.4
| 0.192
|
|-
| {{w|Maple syrup}}
| 1.8
| 0.0178
|
|
|-
| {{w|Hair conditioner|Conditioner}}
| 2.5
| 0.0620
| For hair
|-
| {{w|Mustard (condiment)|Mustard}}
| 3.7
| 0.136
|
|-
| {{w|Liquid soap}}
| 4.7
| 0.219
|
|-
| {{w|Olive oil}}
| 6.2
| 0.381
| Largest diameter in the upper chart
|-
| {{w|Coffee}}
| 58
| 33.4
|
|-
| {{w|Peanut butter}}
| 8.6
| 0.733
| Smallest diameter in the bottom chart
|-
| {{w|Ice cream}}
| 20
| 3.97
|
|-
| {{w|Cheese}}
| 70
| 48.6
| Made from milk (cow) also in the chart
|-
| {{w|Carbonated water|Soda}}
| 82
| 66.7
| As in club soda
|-
| {{w|Acetone}}
| 13.6
| 1.83
| An organic chemical used as a highly potent cleaner in labs.
|-
| {{w|Liquor}}
| 15
| 2.23
| May not include beer or wine (also in chart)
|-
| {{w|Gasoline}}
| 220
| 480.
| Made from petrol, also in the chart
|-
| {{w|Yogurt}}
| 15
| 2.23
| Made from milk (cow), also in the chart
|-
| {{w|Milk#Cow.27s_milk|Milk (cow)}}
| 106
| 111
|
|-
| {{w|Bottled water}}
| 71
| 50.0
| See also [[1599: Water Delivery]]
|-
| {{w|Sugar}}
| 42
| 17.5
| See also [[1639: To Taste]]
|-
| {{w|Saliva}}
| 85
| 71.6
| From these data it could be calculated how long it would take America to drool enough to fill that pool from the what if? {{what if|144|Saliva Pool}}.
|-
| {{w|Wine}}
| 18
| 3.21
| Americans drank just under [https://www.wineinstitute.org/resources/statistics/article86 900 million gallons of wine in 2014], or almost 3.4 million cubic metres per year meaning that Americans drink about 0.11 m3/s. With the pipe flowing at 4 m/s this pipe must have an area of 268cm2. The radius of a pipe of area 268cm^2 is 9.25 cm. The wine pipe should thus have a diameter of 18.5 cm, very close to the one found by measuring on the chart.
|-
| {{w|HFCS}}
| 20
| 3.97
| High fructose corn syrup
|-
| {{w|Breast milk|Milk (human)}}
| 10.6
| 1.114
|
|-
| {{w|Petroleum}}
| 318
| 1002
| Largest diameter in the bottom chart, except for the public water. Also known as crude oil. Used to make for instance gasoline, also in the chart.
|-
| {{w|Meat}}
| 59
| 34.5
|
|-
| {{w|Glass}}
| 28
| 7.77
|
|-
| {{w|Beer}}
| 54
| 28.9
|
|-
| {{w|Tea}}
| 41
| 16.67
|
|-
| {{w|Cement}}
| 74
| 54.3
|
|-
| {{w|Tap water|Public water}}
| 2550
| 64,465
| Using the formula [http://math.stackexchange.com/questions/564058/calculate-the-radius-of-a-circle-given-the-chord-length-and-height-of-a-segment here] it is possible to calculate the diameter of a circle given the chord length = l and height = h of a segment. From the drawing (and scaling) l = 390 cm and h = 15 cm. The formula states that D = h + l2/(4*h) = 15 cm + (390 cm)2/(4*15 cm) = 2550 cm.
|}

==Transcript==
:[Caption above the first main panel, to the left of a smaller panel to the right.]
:<big>The size of the US’s</big>
:<big><big>'''Pipelines'''</big></big>
:<big>if each fluid produced or consumed in the US has to be carried by a single pipe</big>
:Assuming they all flowed at the same speed of about 4m/s
:Note: Many pipelines would overlap (eg. '''soda'''/corn syrup)

:[There is a small panel to the right showing three gray pipes of different sizes leading out over a large hole in the ground. Only a part of the hole can be seen at the bottom left part of the panel, but it curves around indicating it is a large circular hole. The pipes are supported by small legs beneath them and from the end of all three thick liquids are squirting out and down into the hole. The first pipe is by far the largest; the liquid from it is white, but not as white as the background. The second pipe is by far the smallest squirting dark red liquid and the final rightmost pipe is in between and squirts our light brown liquid. Each pipe is labeled. The label on the smallest cannot be read properly, but from the info gained in the next panel it can be inferred for certain what it says (and this is indicated here below):]
:[Large pipe (white)]: Mayo
:[Small pipe (dark red)]: Nail polish
:[Medium pipe (light brown)]: Maple syrup

:[Below is a large panel with a caption at the top. And below this there are twenty circles in different sizes and with different color (or even texture). Each circle is labeled, for the five smallest the label is outside, in one case with an arrow indicating where the label belongs. The rest has the label inside. The text is in black except for four of those with text inside, but with red of black color. Here the text is white. The labels are indicated by color and size, going roughly from top left in reading order based on the position and size of circles not of position of the text:]

:<big>Actual size </big> (When viewed on a typical computer screen) 
:[Medium green blue and white spiral]: Toothpaste
:[Tiny dark red]: Nail polish
:[Big light blue with white specks]: Windshield washer fluid
:[Very tiny purple]: Silly putty
:[Medium light green]: Shampoo
:[Large dark yellow]: Honey
:[Very small blood red]: Donated blood
:[Tiny black]: Vanilla
:[Big red]: Ketchup
:[Medium dark red with chunks of in different green and lighter red colors]: Salsa
:[Small white]: Sunscreen
:[Very small light green]: Personal lubricant
:[Very tiny gray]: LCD liquid
:[Medium off-white]: Mayo
:[Very small black]: Printer ink
:[Small light brown]: Maple syrup
:[Small light green]: Conditioner
:[Medium yellow]: Mustard
:[Large light green]: Liquid soap
:[Big olive green]: Olive oil

:[The panel just described is indicated to fit into a small rectangle at the top left of the next panel below. There are four lines ending at the four corners of this small rectangle, two of these are going to the two bottom corners and the other two ends on the lower part of the panel just above the small rectangle. They are indicated to go under the panel and would hit the two top corners if extrapolated). The 11 largest circles are clearly seen, but most of the other circles can also be noted. The colors are the same but any features in the original circles as well as the labels are gone. The part of the black top frame of the next panel below is faded out to gray in between the section cut off by the two lines going to the bottom corners of the panel above. This rectangle indicated the increasing size compared to the first panel above.]

:[Apart from the insert mentioned above the second panel follows the same layout, but with 22 circles with even larger range of sizes. The panel is more than twice as long as the first panel. A Megan-like girl, but with white hair, is drawn at the top of the panel just left of the middle. Her hair close to the top, just below the line going to the right corner above. There are two medium and five smaller circles to her left and one small close to her head and one huge circle to her right. Her feet are less than a third down this panel standing on top of the next row of circles. In the bottom half of the panel there is a giant circle which almost touches the left side of the panel. There are smaller circles above it and down along the right side. One last circle is to the left almost at the bottom. At the very bottom is a slightly curving line to indicate a much much larger blue circle that only graces the panel (no. 23). There is a small green fish in this water to the left of the label. Below the labels are again listed as above. One label has a foot note. But it is written directly beneath the circle in which it is referenced. So it will be written together with the label on the next line. There is also one case with an arrow used to indicate where the label belongs.]

:[Medium dark gray]: Coffee
:[Very tiny gray]: Peanut butter
:[Very small gray with black specks]: Ice cream
:[Very small yellow with white specks]: Cheese
:[Large brown with white fizzing]: Soda
:[Tiny White]: Acetone
:[Tiny gray]: Liquor
:[Huge dark yellow]: Gasoline
:[Tiny White with blue and orange specks]: Yogurt
:[Big white]: Milk (cow)
:[Large light blue]: Bottled water
:[Small white]: Sugar
:[Large light gray with white specks]: Saliva
:[Very small light yellow]: Wine
:[Very small orange]: HFCS
:[Very tiny white]: Milk (human)
:[Gigantic dark gray]: Petroleum
:[Medium dark red with black texture]: Meat (mostly solid)
:[Small white]: Glass*
::<nowiki>*</nowiki>Solid at room temperature
:[Medium light brown]: Beer
:[Small gray brown]: Tea
:[Large gray]: Cement
:[Gracing bottom of panel light blue]: Public water

==Trivia==
*In addition to the what if? article, the relevancy of pipelines, particularly regarding public water, is heightened due to the ongoing public health crisis in {{w|Flint, Michigan}}, caused by recent (mis-)management of their public water system.<ref>McLaughlin, Elliot. [http://edition.cnn.com/2016/01/18/us/flint-michigan-water-crisis-five-things/index.html “5 things to know about Flint's water crisis”], '{{w|CNN}}', January 21 2016. Retrieved 1 March 2016.</ref>
**Studies have shown that temporary use of the Flint River as a water source caused corrosive water to leach lead from old pipes, causing lead poisoning in many residents, particularly children; other ill effects in addition to lead have been noted.
**The crisis has lead to a public outcry against the state "emergency financial management" team appointed and supervised by the state executive (Gov. Rick Snyder and staff) and an outpouring of support from nearby communities such as Metro Detroit via bottled water donations to Flint residents.
*This is the third comic posted on Leap Day ({{w|February 29}}) on Monday in 2016; the previous ones were:
**[[390: Nightmares]] on a Friday in 2008 and
**[[1023: Late-Night PBS]] on a Wednesday in 2012.
**If the current M-W-F schedule continues, the next such comic will not happen before 2036 when the leap day again falls on a Friday (Following the [https://en.wikipedia.org/wiki/Solar_cycle_(calendar) 28 year cycle]).
**It may also be interesting to note that the first three leap years after xkcd began (in just over 10 years) all fell on a release day, then followed by a break of 20 years.

==References==
<references />

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Charts]]
[[Category:Food]]
[[Category:Animals]]

1649: Pipelines

2016-03-02T18:52:55Z

188.114.106.47: /* Trivia */

{{comic
| number = 1649
| date = February 29, 2016
| title = Pipelines
| image = pipelines.png
| titletext = In the future, every single pipeline will lead to the bowl of a giant blender, and we'll all just show up with a bucket each day to take our share of the resulting smoothie.
}}

==Explanation==
{{incomplete|The table with all the items should be filled out with explanations etc. and the diameter should be calculated from real data (with references).}}

Follows a similar idea to the [[what if?]] {{what if|147|Niagara Straw}}, (from three days before this comic's release), where the entire water flow over {{w|Niagara Falls}} is imagined to flow through a straw (i.e. 7 mm diameter with disastrous results).

In this comic [[Randall]] imagines what size pipes are necessary to carry US domestic production/consumption of various fluids if the flow rate were fixed at 4 meters per second. Randall notes that "many pipes would overlap", owing to the fact that consumption of one item as corn syrup would be due to the production of one of the others, in this case soda pop (another example, than the previous one which is actually mentioned in the comic, could be gasoline which is produced from petroleum ).

The top panel is in [http://store-xkcd-com.myshopify.com/products/actual-size-stickers actual size] (something Randall often jokes about but here he means it). This means that if you look at the image in actual size (or measure lengths in the full size image) then the measured diameter is the diameter Randall has calculated the pipe should be, based on his data for the consumption of these substances.

In the second panel the pipes are too big for his drawing. To indicate the scale he has both inserted a human (appearance like [[Megan]], but with blonde hair, i.e. not Megan) and the top panel has been shrunk down to indicate how much larger the bottom panel is (this is similar to the link between the panels in [[980: Money]]). Using the size of the top panel and the smaller insert, it can be found that the scale is 20:1. (The woman is 9 cm tall in the image, which makes her 180 cm -- 5 feet 11 inches -- in "real life"). The pipe next to her for gasoline would have a diameter of 2.2 m.

Since the caption at the top mentions both fluid produced and consumed in the US it becomes very difficult to find out which number Randall uses. For instance the consumption of wine in the US and the production of wine in the US is not necessarily the same as wine is both imported and exported. Should there then be two pipes? Unlike similar comics (like Money mentioned above) there are no references for where Randall has the data for this comic.

As usual with xkcd, the absurdity -- and improbability -- of routing the entirety of each fluid through a single pipe at any point is the source of humor. In addition, despite Randall's stated assumption that all the fluids are magically flowing at the same rate as public water (4 meters per second), many could never actually do so; some "fluids" shown are too viscous (e.g. peanut butter, Silly Putty, meat), adhesive (e.g. maple syrup), or thermally impractical (e.g. glass, cheese, ice cream and yogurt). Lastly, many are just plain zany (e.g. saliva a reference to another what if? {{what if|144|Saliva Pool}}). Note that at the bottom of the last panel there is a much larger pipe for the tap water used by the public. All substances are listed below in the [[#Table|table]].

The title text refers to a possible future based on the idea of this comic in which all the pipes with the above mentioned fluids will actually lead into the same hole as shown in the top right panel. This hole will then be the bowl of a giant blender that mixes all these substances together to a ''{{w|smoothie}}''. The future people will then just come up to this blender and get a bucket full of this mix each day. In reality, this would be an impractical method of getting all of the fluids. Setting the logistical considerations of such a setup aside, this would mean that ketchup and salsa, both intended for human consumption, would be mixed with fluids which are harmful to humans, such as windshield wiper fluid.

Note: "Soup" has been left out, and it might have been expected in this comic due to the similarity to this system with [[Beret Guy|Beret Guy's]] use of a "soup outlet" as an entrepreneur in [[1293: Job Interview]]. It is probably a larger pipeline than salsa and possibly even ketchup. However, there are many different varieties of soups, and most soup is probably not bought finished, both very good reasons to not include it in the chart. But still the idea of having a soup outlet is very similar to this comic.

===Table===
*All the substances are listed here in the "reading" order also used in the transcript.
*The diameter is for the inner part of the tube.
*GL is for GigaLiters - or Billion Liters. This is strictly the annual discharge of the Size (cm) column at 4 m/s.
{| class="wikitable sortable"
|-
|+ All substances with size as found in the picture, vs. size calculated from public information
|-
! scope="col" | Substance
! scope="col" | Size (cm)
! scope="col" | Annual Discharge (GL)
! scope="col" | Explanation
|-
| {{w|Toothpaste}}
| 3.5
| 0.121
| In the title text of [[1599: Water Delivery]] Randall claims that he as a child could not understand why there were no toothpaste pipe to his house when there was one for water... Giving this is at the top, this is a clear allusion to this comment. Calculation is based on 542 g/year per capita consumption of toothpaste. Source: [https://www.google.co.il/search?q=toothpaste+consumption+by+country&num=100&espv=2&rlz=1C1VFKB_enIL627IL627&tbm=isch&imgil=2wpGcxkoKlCvAM%253A%253BvrrYrXTGlziE6M%253Bhttp%25253A%25252F%25252Fwww.sanasecurities.com%25252Ftop-story%25252Ffuture-prospect-indian-oral-care-industry&source=iu&pf=m&fir=2wpGcxkoKlCvAM%253A%252CvrrYrXTGlziE6M%252C_&usg=__g9B9_HQ-jLim5P25Ov5d6l6BiNk%3D&biw=1920&bih=955&ved=0ahUKEwjLiMn-op_LAhVD4XIKHcvPCMsQyjcIJA&ei=I27VVovrEsPCywPLn6PYDA#imgrc=2wpGcxkoKlCvAM%3A here].
The year the graph was made in is estimated to be 2013, and 316.5 million estimated 2013 US population to calculate the diameter above.
|-
| {{w|Nail polish}}
| 0.4
| 0.000159
| Much less than acetone, which is used as a nail polish remover.
|-
| {{w|Windshield washer fluid}}
| 5.6
| 0.311
|
|-
| {{w|Silly putty}}
| 0.1
| 0.0000991
| Smallest diameter
|-
| {{w|Shampoo}}
| 4
| 0.159
|
|-
| {{w|Honey}}
| 5.2
| 0.268
|
|-
| {{w|Blood donation|Donated blood}}
| 0.9
| 0.00803
|
|-
| {{w|Vanilla}}
| 0.4
| 0.000159
| Not the ice but the spice (which is black as the substance in the vanilla pipe).
|-
| {{w|Ketchup}}
| 5.2
| 0.268
|
|-
| {{w|Salsa (sauce)|Salsa}}
| 3.6
| 0.128
|
|-
| {{w|Sunscreen}}
| 1.35
| 0.0181
|
|-
| {{w|Personal lubricant}}
| 0.65
| 0.00419
| Aka lube
|-
| {{w|LCD liquid}}
| 0.26
| 0.000670
| For {{w|Liquid-crystal display}}
|-
| {{w|Mayonnaise|Mayo}}
| 4.4
| 0.192
| Or mayonnaise
|-
| {{w|Printer ink}}
| 1.4
| 0.192
|
|-
| {{w|Maple syrup}}
| 1.8
| 0.0178
|
|
|-
| {{w|Hair conditioner|Conditioner}}
| 2.5
| 0.0620
| For hair
|-
| {{w|Mustard (condiment)|Mustard}}
| 3.7
| 0.136
|
|-
| {{w|Liquid soap}}
| 4.7
| 0.219
|
|-
| {{w|Olive oil}}
| 6.2
| 0.381
| Largest diameter in the upper chart
|-
| {{w|Coffee}}
| 58
| 33.4
|
|-
| {{w|Peanut butter}}
| 8.6
| 0.733
| Smallest diameter in the bottom chart
|-
| {{w|Ice cream}}
| 20
| 3.97
|
|-
| {{w|Cheese}}
| 70
| 48.6
| Made from milk (cow) also in the chart
|-
| {{w|Carbonated water|Soda}}
| 82
| 66.7
| As in club soda
|-
| {{w|Acetone}}
| 13.6
| 1.83
| An organic chemical used as a highly potent cleaner in labs.
|-
| {{w|Liquor}}
| 15
| 2.23
| May not include beer or wine (also in chart)
|-
| {{w|Gasoline}}
| 220
| 480.
| Made from petrol, also in the chart
|-
| {{w|Yogurt}}
| 15
| 2.23
| Made from milk (cow), also in the chart
|-
| {{w|Milk#Cow.27s_milk|Milk (cow)}}
| 106
| 111
|
|-
| {{w|Bottled water}}
| 71
| 50.0
| See also [[1599: Water Delivery]]
|-
| {{w|Sugar}}
| 42
| 17.5
| See also [[1639: To Taste]]
|-
| {{w|Saliva}}
| 85
| 71.6
| From these data it could be calculated how long it would take America to drool enough to fill that pool from the what if? {{what if|144|Saliva Pool}}.
|-
| {{w|Wine}}
| 18
| 3.21
| Americans drank just under [https://www.wineinstitute.org/resources/statistics/article86 900 million gallons of wine in 2014], or almost 3.4 million cubic metres per year meaning that Americans drink about 0.11 m3/s. With the pipe flowing at 4 m/s this pipe must have an area of 268cm2. The radius of a pipe of area 268cm^2 is 9.25 cm. The wine pipe should thus have a diameter of 18.5 cm, very close to the one found by measuring on the chart.
|-
| {{w|HFCS}}
| 20
| 3.97
| High fructose corn syrup
|-
| {{w|Breast milk|Milk (human)}}
| 10.6
| 1.114
|
|-
| {{w|Petroleum}}
| 318
| 1002
| Largest diameter in the bottom chart, except for the public water. Also known as crude oil. Used to make for instance gasoline, also in the chart.
|-
| {{w|Meat}}
| 59
| 34.5
|
|-
| {{w|Glass}}
| 28
| 7.77
|
|-
| {{w|Beer}}
| 54
| 28.9
|
|-
| {{w|Tea}}
| 41
| 16.67
|
|-
| {{w|Cement}}
| 74
| 54.3
|
|-
| {{w|Tap water|Public water}}
| 2550
| 64,465
| Using the formula [http://math.stackexchange.com/questions/564058/calculate-the-radius-of-a-circle-given-the-chord-length-and-height-of-a-segment here] it is possible to calculate the diameter of a circle given the chord length = l and height = h of a segment. From the drawing (and scaling) l = 390 cm and h = 15 cm. The formula states that D = h + l2/(4*h) = 15 cm + (390 cm)2/(4*15 cm) = 2550 cm.
|}

==Transcript==
:[Caption above the first main panel, to the left of a smaller panel to the right.]
:<big>The size of the US’s</big>
:<big><big>'''Pipelines'''</big></big>
:<big>if each fluid produced or consumed in the US has to be carried by a single pipe</big>
:Assuming they all flowed at the same speed of about 4m/s
:Note: Many pipelines would overlap (eg. '''soda'''/corn syrup)

:[There is a small panel to the right showing three gray pipes of different sizes leading out over a large hole in the ground. Only a part of the hole can be seen at the bottom left part of the panel, but it curves around indicating it is a large circular hole. The pipes are supported by small legs beneath them and from the end of all three thick liquids are squirting out and down into the hole. The first pipe is by far the largest; the liquid from it is white, but not as white as the background. The second pipe is by far the smallest squirting dark red liquid and the final rightmost pipe is in between and squirts our light brown liquid. Each pipe is labeled. The label on the smallest cannot be read properly, but from the info gained in the next panel it can be inferred for certain what it says (and this is indicated here below):]
:[Large pipe (white)]: Mayo
:[Small pipe (dark red)]: Nail polish
:[Medium pipe (light brown)]: Maple syrup

:[Below is a large panel with a caption at the top. And below this there are twenty circles in different sizes and with different color (or even texture). Each circle is labeled, for the five smallest the label is outside, in one case with an arrow indicating where the label belongs. The rest has the label inside. The text is in black except for four of those with text inside, but with red of black color. Here the text is white. The labels are indicated by color and size, going roughly from top left in reading order based on the position and size of circles not of position of the text:]

:<big>Actual size </big> (When viewed on a typical computer screen) 
:[Medium green blue and white spiral]: Toothpaste
:[Tiny dark red]: Nail polish
:[Big light blue with white specks]: Windshield washer fluid
:[Very tiny purple]: Silly putty
:[Medium light green]: Shampoo
:[Large dark yellow]: Honey
:[Very small blood red]: Donated blood
:[Tiny black]: Vanilla
:[Big red]: Ketchup
:[Medium dark red with chunks of in different green and lighter red colors]: Salsa
:[Small white]: Sunscreen
:[Very small light green]: Personal lubricant
:[Very tiny gray]: LCD liquid
:[Medium off-white]: Mayo
:[Very small black]: Printer ink
:[Small light brown]: Maple syrup
:[Small light green]: Conditioner
:[Medium yellow]: Mustard
:[Large light green]: Liquid soap
:[Big olive green]: Olive oil

:[The panel just described is indicated to fit into a small rectangle at the top left of the next panel below. There are four lines ending at the four corners of this small rectangle, two of these are going to the two bottom corners and the other two ends on the lower part of the panel just above the small rectangle. They are indicated to go under the panel and would hit the two top corners if extrapolated). The 11 largest circles are clearly seen, but most of the other circles can also be noted. The colors are the same but any features in the original circles as well as the labels are gone. The part of the black top frame of the next panel below is faded out to gray in between the section cut off by the two lines going to the bottom corners of the panel above. This rectangle indicated the increasing size compared to the first panel above.]

:[Apart from the insert mentioned above the second panel follows the same layout, but with 22 circles with even larger range of sizes. The panel is more than twice as long as the first panel. A Megan-like girl, but with white hair, is drawn at the top of the panel just left of the middle. Her hair close to the top, just below the line going to the right corner above. There are two medium and five smaller circles to her left and one small close to her head and one huge circle to her right. Her feet are less than a third down this panel standing on top of the next row of circles. In the bottom half of the panel there is a giant circle which almost touches the left side of the panel. There are smaller circles above it and down along the right side. One last circle is to the left almost at the bottom. At the very bottom is a slightly curving line to indicate a much much larger blue circle that only graces the panel (no. 23). There is a small green fish in this water to the left of the label. Below the labels are again listed as above. One label has a foot note. But it is written directly beneath the circle in which it is referenced. So it will be written together with the label on the next line. There is also one case with an arrow used to indicate where the label belongs.]

:[Medium dark gray]: Coffee
:[Very tiny gray]: Peanut butter
:[Very small gray with black specks]: Ice cream
:[Very small yellow with white specks]: Cheese
:[Large brown with white fizzing]: Soda
:[Tiny White]: Acetone
:[Tiny gray]: Liquor
:[Huge dark yellow]: Gasoline
:[Tiny White with blue and orange specks]: Yogurt
:[Big white]: Milk (cow)
:[Large light blue]: Bottled water
:[Small white]: Sugar
:[Large light gray with white specks]: Saliva
:[Very small light yellow]: Wine
:[Very small orange]: HFCS
:[Very tiny white]: Milk (human)
:[Gigantic dark gray]: Petroleum
:[Medium dark red with black texture]: Meat (mostly solid)
:[Small white]: Glass*
::<nowiki>*</nowiki>Solid at room temperature
:[Medium light brown]: Beer
:[Small gray brown]: Tea
:[Large gray]: Cement
:[Gracing bottom of panel light blue]: Public water

==Trivia==
*In addition to the what if? article, the relevancy of pipelines, particularly regarding public water, is heightened due to the ongoing public health crisis in {{w|Flint, Michigan}}, caused by recent (mis-)management of their public water system.<ref>McLaughlin, Elliot. [http://edition.cnn.com/2016/01/18/us/flint-michigan-water-crisis-five-things/index.html “5 things to know about Flint's water crisis”], '{{w|CNN}}', January 21 2016. Retrieved 1 March 2016.</ref>
**Studies have shown that temporary use of the Flint River as a water source caused corrosive water to leach lead from old pipes, causing lead poisoning in many residents, particularly children; other ill effects in addition to lead have been noted.
**The crisis has lead to a public outcry against the state "emergency financial management" team appointed and supervised by the state executive (Gov. Rick Snyder and staff) and an outpouring of support from nearby communities such as Metro Detroit via bottled water donations to Flint residents.
*This is the third comic posted on Leap Day ({{w|February 29}}) on Monday in 2016; the previous ones were:
**[[390: Nightmares]] on a Friday in 2008 and
**[[1023: Late-Night PBS]] on a Wednesday in 2012.
**If the current M-W-F schedule continues, the next such comic will not happen before 2036 when the leap day again falls on a Friday (Following the [https://en.wikipedia.org/wiki/Solar_cycle_(calendar) 28 year cycle].
**It may also be interesting to note that the first three leap years after xkcd began (in just over 10 years) all fell on a release day, then followed by a break of 20 years.

==References==
<references />

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Charts]]
[[Category:Food]]
[[Category:Animals]]

Talk:1649: Pipelines

2016-03-02T18:02:27Z

188.114.106.47:

1649: Pipelines

2016-03-02T17:21:37Z

188.114.106.47: /* Table */

{{comic
| number = 1649
| date = February 29, 2016
| title = Pipelines
| image = pipelines.png
| titletext = In the future, every single pipeline will lead to the bowl of a giant blender, and we'll all just show up with a bucket each day to take our share of the resulting smoothie.
}}

==Explanation==
{{incomplete|The table with all the items should be filled out with explanations etc. and the diameter should be calculated from real data (with references).}}

Follows a similar idea to the [[what if?]] {{what if|147|Niagara Straw}}, (from three days before this comic's release), where the entire water flow over {{w|Niagara Falls}} is imagined to flow through a straw (i.e. 7 mm diameter with disastrous results).

In this comic [[Randall]] imagines what size pipes are necessary to carry US domestic production/consumption of various fluids if the flow rate were fixed at 4 meters per second. Randall notes that "many pipes would overlap", owing to the fact that consumption of one item as corn syrup would be due to the production of one of the others, in this case soda pop (another example, than the previous one which is actually mentioned in the comic, could be gasoline which is produced from petroleum ).

The top panel is in [http://store-xkcd-com.myshopify.com/products/actual-size-stickers actual size] (something Randall often jokes about but here he means it). This means that if you look at the image in actual size (or measure lengths in the full size image) then the measured diameter is the diameter Randall has calculated the pipe should be, based on his data for the consumption of these substances.

In the second panel the pipes are too big for his drawing. To indicate the scale he has both inserted a human (appearance like [[Megan]], but with blonde hair, i.e. not Megan) and the top panel has been shrunk down to indicate how much larger the bottom panel is (this is similar to the link between the panels in [[980: Money]]). Using the size of the top panel and the smaller insert, it can be found that the scale is 20:1. (The woman is 9 cm tall in the image, which makes her 180 cm -- 5 feet 11 inches -- in "real life"). The pipe next to her for gasoline would have a diameter of 2.2 m.

Since the caption at the top mentions both fluid produced and consumed in the US it becomes very difficult to find out which number Randall uses. For instance the consumption of wine in the US and the production of wine in the US is not necessarily the same as wine is both imported and exported. Should there then be two pipes? Unlike similar comics (like Money mentioned above) there are no references for where Randall has the data for this comic.

As usual with xkcd, the absurdity -- and improbability -- of routing the entirety of each fluid through a single pipe at any point is the source of humor. In addition, despite Randall's stated assumption that all the fluids are magically flowing at the same rate as public water (4 meters per second), many could never actually do so; some "fluids" shown are too viscous (e.g. peanut butter, Silly Putty, meat), adhesive (e.g. maple syrup), or thermally impractical (e.g. glass, cheese, ice cream and yogurt). Lastly, many are just plain zany (e.g. saliva a reference to another what if? {{what if|144|Saliva Pool}}). Note that at the bottom of the last panel there is a much larger pipe for the tap water used by the public. All substances are listed below in the [[#Table|table]].

The title text refers to a possible future based on the idea of this comic in which all the pipes with the above mentioned fluids will actually lead into the same hole as shown in the top right panel. This hole will then be the bowl of a giant blender that mixes all these substances together to a ''{{w|smoothie}}''. The future people will then just come up to this blender and get a bucket full of this mix each day. In reality, this would be an impractical method of getting all of the fluids. Setting the logistical considerations of such a setup aside, this would mean that ketchup and salsa, both intended for human consumption, would be mixed with fluids which are harmful to humans, such as windshield wiper fluid.

Note: "Soup" has been left out, and it might have been expected in this comic due to the similarity to this system with [[Beret Guy|Beret Guy's]] use of a "soup outlet" as an entrepreneur in [[1293: Job Interview]]. It is probably a larger pipeline than salsa and possibly even ketchup. However, there are many different varieties of soups, and most soup is probably not bought finished, both very good reasons to not include it in the chart. But still the idea of having a soup outlet is very similar to this comic.

===Table===
*All the substances are listed here in the "reading" order also used in the transcript.
*The diameter is for the inner part of the tube.
*GL is for GigaLiters - or Billion Liters. This is strictly the annual discharge of the Size (cm) column at 4 m/s.
{| class="wikitable sortable"
|-
|+ All substances with size as found in the picture, vs. size calculated from public information
|-
! scope="col" | Substance
! scope="col" | Size (cm)
! scope="col" | Annual Discharge (GL)
! scope="col" | Explanation
|-
| {{w|Toothpaste}}
| 3.5
| 0.121
| In the title text of [[1599: Water Delivery]] Randall claims that he as a child could not understand why there were no toothpaste pipe to his house when there was one for water... Giving this is at the top, this is a clear allusion to this comment. Calculation is based on 542 g/year per capita consumption of toothpaste. Source: [https://www.google.co.il/search?q=toothpaste+consumption+by+country&num=100&espv=2&rlz=1C1VFKB_enIL627IL627&tbm=isch&imgil=2wpGcxkoKlCvAM%253A%253BvrrYrXTGlziE6M%253Bhttp%25253A%25252F%25252Fwww.sanasecurities.com%25252Ftop-story%25252Ffuture-prospect-indian-oral-care-industry&source=iu&pf=m&fir=2wpGcxkoKlCvAM%253A%252CvrrYrXTGlziE6M%252C_&usg=__g9B9_HQ-jLim5P25Ov5d6l6BiNk%3D&biw=1920&bih=955&ved=0ahUKEwjLiMn-op_LAhVD4XIKHcvPCMsQyjcIJA&ei=I27VVovrEsPCywPLn6PYDA#imgrc=2wpGcxkoKlCvAM%3A here].
The year the graph was made in is estimated to be 2013, and 316.5 million estimated 2013 US population to calculate the diameter above.
|-
| {{w|Nail polish}}
| 0.4
| 0.000159
| Much less than acetone, which is used as a nail polish remover.
|-
| {{w|Windshield washer fluid}}
| 5.6
| 0.311
|
|-
| {{w|Silly putty}}
| 0.1
| 0.0000991
| Smallest diameter
|-
| {{w|Shampoo}}
| 4
| 0.159
|
|-
| {{w|Honey}}
| 5.2
| 0.268
|
|-
| {{w|Blood donation|Donated blood}}
| 0.9
| 0.00803
|
|-
| {{w|Vanilla}}
| 0.4
| 0.000159
| Not the ice but the spice (which is black as the substance in the vanilla pipe).
|-
| {{w|Ketchup}}
| 5.2
| 0.268
|
|-
| {{w|Salsa (sauce)|Salsa}}
| 3.6
| 0.128
|
|-
| {{w|Sunscreen}}
| 1.35
| 0.0181
|
|-
| {{w|Personal lubricant}}
| 0.65
| 0.00419
| Aka lube
|-
| {{w|LCD liquid}}
| 0.26
| 0.000670
| For {{w|Liquid-crystal display}}
|-
| {{w|Mayonnaise|Mayo}}
| 4.4
| 0.192
| Or mayonnaise
|-
| {{w|Printer ink}}
| 1.4
| 0.192
|
|-
| {{w|Maple syrup}}
| 1.8
| 0.0178
|
|
|-
| {{w|Hair conditioner|Conditioner}}
| 2.5
| 0.0620
| For hair
|-
| {{w|Mustard (condiment)|Mustard}}
| 3.7
| 0.136
|
|-
| {{w|Liquid soap}}
| 4.7
| 0.219
|
|-
| {{w|Olive oil}}
| 6.2
| 0.381
| Largest diameter in the upper chart
|-
| {{w|Coffee}}
| 58
| 33.4
|
|-
| {{w|Peanut butter}}
| 8.6
| 0.733
| Smallest diameter in the bottom chart
|-
| {{w|Ice cream}}
| 20
| 3.97
|
|-
| {{w|Cheese}}
| 70
| 48.6
| Made from milk (cow) also in the chart
|-
| {{w|Carbonated water|Soda}}
| 82
| 66.7
| As in club soda
|-
| {{w|Acetone}}
| 13.6
| 1.83
| An organic chemical used as a highly potent cleaner in labs.
|-
| {{w|Liquor}}
| 15
| 2.23
| May not include beer or wine (also in chart)
|-
| {{w|Gasoline}}
| 220
| 480.
| Made from petrol, also in the chart
|-
| {{w|Yogurt}}
| 15
| 2.23
| Made from milk (cow), also in the chart
|-
| {{w|Milk#Cow.27s_milk|Milk (cow)}}
| 106
| 111
|
|-
| {{w|Bottled water}}
| 71
| 50.0
| See also [[1599: Water Delivery]]
|-
| {{w|Sugar}}
| 42
| 17.5
| See also [[1639: To Taste]]
|-
| {{w|Saliva}}
| 85
| 71.6
| From these data it could be calculated how long it would take America to drool enough to fill that pool from the what if? {{what if|144|Saliva Pool}}.
|-
| {{w|Wine}}
| 18
| 3.21
| Americans drank just under [https://www.wineinstitute.org/resources/statistics/article86 900 million gallons of wine in 2014], or almost 3.4 million cubic metres per year meaning that Americans drink about 0.11 m3/s. With the pipe flowing at 4 m/s this pipe must have an area of 268cm2. The radius of a pipe of area 268cm^2 is 9.25 cm. The wine pipe should thus have a diameter of 18.5 cm, very close to the one found by measuring on the chart.
|-
| {{w|HFCS}}
| 20
| 3.97
| High fructose corn syrup
|-
| {{w|Breast milk|Milk (human)}}
| 10.6
| 1.114
|
|-
| {{w|Petroleum}}
| 318
| 1002
| Largest diameter in the bottom chart, except for the public water. Also known as crude oil. Used to make for instance gasoline, also in the chart.
|-
| {{w|Meat}}
| 59
| 34.5
|
|-
| {{w|Glass}}
| 28
| 7.77
|
|-
| {{w|Beer}}
| 54
| 28.9
|
|-
| {{w|Tea}}
| 41
| 16.67
|
|-
| {{w|Cement}}
| 74
| 54.3
|
|-
| {{w|Tap water|Public water}}
| 2550
| 64,465
| Using the formula [http://math.stackexchange.com/questions/564058/calculate-the-radius-of-a-circle-given-the-chord-length-and-height-of-a-segment here] it is possible to calculate the diameter of a circle given the chord length = l and height = h of a segment. From the drawing (and scaling) l = 390 cm and h = 15 cm. The formula states that D = h + l2/(4*h) = 15 cm + (390 cm)2/(4*15 cm) = 2550 cm.
|}

==Transcript==
:[Caption above the first main panel, to the left of a smaller panel to the right.]
:<big>The size of the US’s</big>
:<big><big>'''Pipelines'''</big></big>
:<big>if each fluid produced or consumed in the US has to be carried by a single pipe</big>
:Assuming they all flowed at the same speed of about 4m/s
:Note: Many pipelines would overlap (eg. '''soda'''/corn syrup)

:[There is a small panel to the right showing three gray pipes of different sizes leading out over a large hole in the ground. Only a part of the hole can be seen at the bottom left part of the panel, but it curves around indicating it is a large circular hole. The pipes are supported by small legs beneath them and from the end of all three thick liquids are squirting out and down into the hole. The first pipe is by far the largest; the liquid from it is white, but not as white as the background. The second pipe is by far the smallest squirting dark red liquid and the final rightmost pipe is in between and squirts our light brown liquid. Each pipe is labeled. The label on the smallest cannot be read properly, but from the info gained in the next panel it can be inferred for certain what it says (and this is indicated here below):]
:[Large pipe (white)]: Mayo
:[Small pipe (dark red)]: Nail polish
:[Medium pipe (light brown)]: Maple syrup

:[Below is a large panel with a caption at the top. And below this there are twenty circles in different sizes and with different color (or even texture). Each circle is labeled, for the five smallest the label is outside, in one case with an arrow indicating where the label belongs. The rest has the label inside. The text is in black except for four of those with text inside, but with red of black color. Here the text is white. The labels are indicated by color and size, going roughly from top left in reading order based on the position and size of circles not of position of the text:]

:<big>Actual size </big> (When viewed on a typical computer screen) 
:[Medium green blue and white spiral]: Toothpaste
:[Tiny dark red]: Nail polish
:[Big light blue with white specks]: Windshield washer fluid
:[Very tiny purple]: Silly putty
:[Medium light green]: Shampoo
:[Large dark yellow]: Honey
:[Very small blood red]: Donated blood
:[Tiny black]: Vanilla
:[Big red]: Ketchup
:[Medium dark red with chunks of in different green and lighter red colors]: Salsa
:[Small white]: Sunscreen
:[Very small light green]: Personal lubricant
:[Very tiny gray]: LCD liquid
:[Medium off-white]: Mayo
:[Very small black]: Printer ink
:[Small light brown]: Maple syrup
:[Small light green]: Conditioner
:[Medium yellow]: Mustard
:[Large light green]: Liquid soap
:[Big olive green]: Olive oil

:[The panel just described is indicated to fit into a small rectangle at the top left of the next panel below. There are four lines ending at the four corners of this small rectangle, two of these are going to the two bottom corners and the other two ends on the lower part of the panel just above the small rectangle. They are indicated to go under the panel and would hit the two top corners if extrapolated). The 11 largest circles are clearly seen, but most of the other circles can also be noted. The colors are the same but any features in the original circles as well as the labels are gone. The part of the black top frame of the next panel below is faded out to gray in between the section cut off by the two lines going to the bottom corners of the panel above. This rectangle indicated the increasing size compared to the first panel above.]

:[Apart from the insert mentioned above the second panel follows the same layout, but with 22 circles with even larger range of sizes. The panel is more than twice as long as the first panel. A Megan-like girl, but with white hair, is drawn at the top of the panel just left of the middle. Her hair close to the top, just below the line going to the right corner above. There are two medium and five smaller circles to her left and one small close to her head and one huge circle to her right. Her feet are less than a third down this panel standing on top of the next row of circles. In the bottom half of the panel there is a giant circle which almost touches the left side of the panel. There are smaller circles above it and down along the right side. One last circle is to the left almost at the bottom. At the very bottom is a slightly curving line to indicate a much much larger blue circle that only graces the panel (no. 23). There is a small green fish in this water to the left of the label. Below the labels are again listed as above. One label has a foot note. But it is written directly beneath the circle in which it is referenced. So it will be written together with the label on the next line. There is also one case with an arrow used to indicate where the label belongs.]

:[Medium dark gray]: Coffee
:[Very tiny gray]: Peanut butter
:[Very small gray with black specks]: Ice cream
:[Very small yellow with white specks]: Cheese
:[Large brown with white fizzing]: Soda
:[Tiny White]: Acetone
:[Tiny gray]: Liquor
:[Huge dark yellow]: Gasoline
:[Tiny White with blue and orange specks]: Yogurt
:[Big white]: Milk (cow)
:[Large light blue]: Bottled water
:[Small white]: Sugar
:[Large light gray with white specks]: Saliva
:[Very small light yellow]: Wine
:[Very small orange]: HFCS
:[Very tiny white]: Milk (human)
:[Gigantic dark gray]: Petroleum
:[Medium dark red with black texture]: Meat (mostly solid)
:[Small white]: Glass*
::<nowiki>*</nowiki>Solid at room temperature
:[Medium light brown]: Beer
:[Small gray brown]: Tea
:[Large gray]: Cement
:[Gracing bottom of panel light blue]: Public water

==Trivia==
*In addition to the what if? article, the relevancy of pipelines, particularly regarding public water, is heightened due to the ongoing public health crisis in {{w|Flint, Michigan}}, caused by recent (mis-)management of their public water system.<ref>McLaughlin, Elliot. [http://edition.cnn.com/2016/01/18/us/flint-michigan-water-crisis-five-things/index.html “5 things to know about Flint's water crisis”], '{{w|CNN}}', January 21 2016. Retrieved 1 March 2016.</ref>
**Studies have shown that temporary use of the Flint River as a water source caused corrosive water to leach lead from old pipes, causing lead poisoning in many residents, particularly children; other ill effects in addition to lead have been noted.
**The crisis has lead to a public outcry against the state "emergency financial management" team appointed and supervised by the state executive (Gov. Rick Snyder and staff) and an outpouring of support from nearby communities such as Metro Detroit via bottled water donations to Flint residents.
*This is the third comic posted on Leap Day ({{w|February 29}}); the previous ones were:
**[[390: Nightmares]] also like this one on a Friday in 2008 and
**[[1023: Late-Night PBS]] on a Wednesday in 2012.
**If the current M-W-F schedule continues, the next such comic will not happen before 2036 when the leap day again falls on a Friday.
**It may also be interesting to note that the first three leap years after xkcd began (in just over 10 years) all fell on a release day, then followed by a break of 20 years. In addition, three of these first four leap days all fell on a Friday.

==References==
<references />

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Charts]]
[[Category:Food]]
[[Category:Animals]]

1649: Pipelines

2016-03-02T15:55:35Z

188.114.106.47: /* Table */

{{comic
| number = 1649
| date = February 29, 2016
| title = Pipelines
| image = pipelines.png
| titletext = In the future, every single pipeline will lead to the bowl of a giant blender, and we'll all just show up with a bucket each day to take our share of the resulting smoothie.
}}

==Explanation==
{{incomplete|The table with all the items should be filled out with explanations etc. and the diameter should be calculated from real data (with references).}}

Follows a similar idea to the [[what if?]] {{what if|147|Niagara Straw}}, (from three days before this comic's release), where the entire water flow over {{w|Niagara Falls}} is imagined to flow through a straw (i.e. 7 mm diameter with disastrous results).

In this comic [[Randall]] imagines what size pipes are necessary to carry US domestic production/consumption of various fluids if the flow rate were fixed at 4 meters per second. Randall notes that "many pipes would overlap", owing to the fact that consumption of one item as corn syrup would be due to the production of one of the others, in this case soda pop (another example, than the previous one which is actually mentioned in the comic, could be gasoline which is produced from petroleum ).

The top panel is in [http://store-xkcd-com.myshopify.com/products/actual-size-stickers actual size] (something Randall often jokes about but here he means it). This means that if you look at the image in actual size (or measure lengths in the full size image) then the measured diameter is the diameter Randall has calculated the pipe should be, based on his data for the consumption of these substances.

In the second panel the pipes are too big for his drawing. To indicate the scale he has both inserted a human (appearance like [[Megan]], but with blonde hair, i.e. not Megan) and the top panel has been shrunk down to indicate how much larger the bottom panel is (this is similar to the link between the panels in [[980: Money]]). Using the size of the top panel and the smaller insert, it can be found that the scale is 20:1. (The woman is 9 cm tall in the image, which makes her 180 cm -- 5 feet 11 inches -- in "real life"). The pipe next to her for gasoline would have a diameter of 2.2 m.

Since the caption at the top mentions both fluid produced and consumed in the US it becomes very difficult to find out which number Randall uses. For instance the consumption of wine in the US and the production of wine in the US is not necessarily the same as wine is both imported and exported. Should there then be two pipes? Unlike similar comics (like Money mentioned above) there are no references for where Randall has the data for this comic.

As usual with xkcd, the absurdity -- and improbability -- of routing the entirety of each fluid through a single pipe at any point is the source of humor. In addition, despite Randall's stated assumption that all the fluids are magically flowing at the same rate as public water (4 meters per second), many could never actually do so; some "fluids" shown are too viscous (e.g. peanut butter, Silly Putty, meat), adhesive (e.g. maple syrup), or thermally impractical (e.g. glass, cheese, ice cream and yogurt). Lastly, many are just plain zany (e.g. saliva a reference to another what if? {{what if|144|Saliva Pool}}). Note that at the bottom of the last panel there is a much larger pipe for the tap water used by the public. All substances are listed below in the [[#Table|table]].

The title text refers to a possible future based on the idea of this comic in which all the pipes with the above mentioned fluids will actually lead into the same hole as shown in the top right panel. This hole will then be the bowl of a giant blender that mixes all these substances together to a ''{{w|smoothie}}''. The future people will then just come up to this blender and get a bucket full of this mix each day. In reality, this would be an impractical method of getting all of the fluids. Setting the logistical considerations of such a setup aside, this would mean that ketchup and salsa, both intended for human consumption, would be mixed with fluids which are harmful to humans, such as windshield wiper fluid.

Note: "Soup" has been left out, and it might have been expected in this comic due to the similarity to this system with [[Beret Guy|Beret Guy's]] use of a "soup outlet" as an entrepreneur in [[1293: Job Interview]]. It is probably a larger pipeline than salsa and possibly even ketchup. However, there are many different varieties of soups, and most soup is probably not bought finished, both very good reasons to not include it in the chart. But still the idea of having a soup outlet is very similar to this comic.

===Table===
*All the substances are listed here in the "reading" order also used in the transcript.
*The diameter is for the inner part of the tube.
*GL is for GigaLiters - or Billion Liters. This is strictly the annual discharge of the Size (cm) column at 4 m/s.
{| class="wikitable sortable"
|-
|+ All substances with size as found in the picture, vs. size calculated from public information
|-
! scope="col" | Substance
! scope="col" | Size (cm)
! scope="col" | Annual Discharge (GL)
! scope="col" | Explanation
|-
| {{w|Toothpaste}}
| 3.5
| 0.121
| In the title text of [[1599: Water Delivery]] Randall claims that he as a child could not understand why there were no toothpaste pipe to his house when there was one for water... Giving this is at the top, this is a clear allusion to this comment. Calculation is based on 542 g/year per capita consumption of toothpaste. Source: [https://www.google.co.il/search?q=toothpaste+consumption+by+country&num=100&espv=2&rlz=1C1VFKB_enIL627IL627&tbm=isch&imgil=2wpGcxkoKlCvAM%253A%253BvrrYrXTGlziE6M%253Bhttp%25253A%25252F%25252Fwww.sanasecurities.com%25252Ftop-story%25252Ffuture-prospect-indian-oral-care-industry&source=iu&pf=m&fir=2wpGcxkoKlCvAM%253A%252CvrrYrXTGlziE6M%252C_&usg=__g9B9_HQ-jLim5P25Ov5d6l6BiNk%3D&biw=1920&bih=955&ved=0ahUKEwjLiMn-op_LAhVD4XIKHcvPCMsQyjcIJA&ei=I27VVovrEsPCywPLn6PYDA#imgrc=2wpGcxkoKlCvAM%3A here].
The year the graph was made in is estimated to be 2013, and 316.5 million estimated 2013 US population to calculate the diameter above.
|-
| {{w|Nail polish}}
| 0.4
| 0.000159
|
|-
| {{w|Windshield washer fluid}}
| 5.6
| 0.311
|
|-
| {{w|Silly putty}}
| 0.1
| 0.0000991
| Smallest diameter
|-
| {{w|Shampoo}}
| 4
| 0.159
|
|-
| {{w|Honey}}
| 5.2
| 0.268
|
|-
| {{w|Blood donation|Donated blood}}
| 0.9
| 0.00803
|
|-
| {{w|Vanilla}}
| 0.4
| 0.000159
| Not the ice but the spice (which is black as the substance in the vanilla pipe).
|-
| {{w|Ketchup}}
| 5.2
| 0.268
|
|-
| {{w|Salsa (sauce)|Salsa}}
| 3.6
| 0.128
|
|-
| {{w|Sunscreen}}
| 1.35
| 0.0181
|
|-
| {{w|Personal lubricant}}
| 0.65
| 0.00419
| Aka lube
|-
| {{w|LCD liquid}}
| 0.26
| 0.000670
| For {{w|Liquid-crystal display}}
|-
| {{w|Mayonnaise|Mayo}}
| 4.4
| 0.768
| Or mayonnaise
|-
| {{w|Printer ink}}
| 1.4
| 0.192
|
|-
| {{w|Maple syrup}}
| 1.8
| 0.0178
|
|
|-
| {{w|Hair conditioner|Conditioner}}
| 2.5
| 0.0620
| For hair
|-
| {{w|Mustard (condiment)|Mustard}}
| 3.7
| 0.136
|
|-
| {{w|Liquid soap}}
| 4.7
| 0.219
|
|-
| {{w|Olive oil}}
| 6.2
| 0.381
| Largest diameter in the upper chart
|-
| {{w|Coffee}}
| 58
| 33.4
|
|-
| {{w|Peanut butter}}
| 8.6
| 0.733
| Smallest diameter in the bottom chart
|-
| {{w|Ice cream}}
| 20
| 3.97
|
|-
| {{w|Cheese}}
| 70
| 48.6
| Made from milk (cow) also in the chart
|-
| {{w|Carbonated water|Soda}}
| 82
| 66.7
| As in club soda
|-
| {{w|Acetone}}
| 13.6
| 1.83
| An organic chemical used as a highly potent cleaner in labs.
|-
| {{w|Liquor}}
| 15
| 2.23
|
|-
| {{w|Gasoline}}
| 220
| 480.
| Made from petrol, also in the chart
|-
| {{w|Yogurt}}
| 15
| 2.23
| Made from milk (cow), also in the chart
|-
| {{w|Milk#Cow.27s_milk|Milk (cow)}}
| 106
| 111
|
|-
| {{w|Bottled water}}
| 71
| 50.0
| See also [[1599: Water Delivery]]
|-
| {{w|Sugar}}
| 42
| 17.5
| See also [[1639: To Taste]]
|-
| {{w|Saliva}}
| 85
| 71.6
| From these data it could be calculated how long it would take America to drool enough to fill that pool from the what if? {{what if|144|Saliva Pool}}.
|-
| {{w|Wine}}
| 18
| 3.21
| Americans drank just under [https://www.wineinstitute.org/resources/statistics/article86 900 million gallons of wine in 2014], or almost 3.4 million cubic metres per year meaning that Americans drink about 0.11 m3/s. With the pipe flowing at 4 m/s this pipe must have an area of 268cm2. The radius of a pipe of area 268cm^2 is 9.25 cm. The wine pipe should thus have a diameter of 18.5 cm, very close to the one found by measuring on the chart.
|-
| {{w|HFCS}}
| 20
| 3.97
| High fructose corn syrup
|-
| {{w|Breast milk|Milk (human)}}
| 10.6
| 1.114
|
|-
| {{w|Petroleum}}
| 318
| 1002
| Largest diameter in the bottom chart, except for the public water. Also known as crude oil. Used to make for instance gasoline, also in the chart.
|-
| {{w|Meat}}
| 59
| 34.5
|
|-
| {{w|Glass}}
| 28
| 7.77
|
|-
| {{w|Beer}}
| 54
| 28.9
|
|-
| {{w|Tea}}
| 41
| 16.67
|
|-
| {{w|Cement}}
| 74
| 54.3
|
|-
| {{w|Tap water|Public water}}
| 2550
| 64,465
| Using the formula [http://math.stackexchange.com/questions/564058/calculate-the-radius-of-a-circle-given-the-chord-length-and-height-of-a-segment here] it is possible to calculate the diameter of a circle given the chord length = l and height = h of a segment. From the drawing (and scaling) l = 390 cm and h = 15 cm. The formula states that D = h + l2/(4*h) = 15 cm + (390 cm)2/(4*15 cm) = 2550 cm.
|}

==Transcript==
:[Caption above the first main panel, to the left of a smaller panel to the right.]
:<big>The size of the US’s</big>
:<big><big>'''Pipelines'''</big></big>
:<big>if each fluid produced or consumed in the US has to be carried by a single pipe</big>
:Assuming they all flowed at the same speed of about 4m/s
:Note: Many pipelines would overlap (eg. '''soda'''/corn syrup)

:[There is a small panel to the right showing three gray pipes of different sizes leading out over a large hole in the ground. Only a part of the hole can be seen at the bottom left part of the panel, but it curves around indicating it is a large circular hole. The pipes are supported by small legs beneath them and from the end of all three thick liquids are squirting out and down into the hole. The first pipe is by far the largest; the liquid from it is white, but not as white as the background. The second pipe is by far the smallest squirting dark red liquid and the final rightmost pipe is in between and squirts our light brown liquid. Each pipe is labeled. The label on the smallest cannot be read properly, but from the info gained in the next panel it can be inferred for certain what it says (and this is indicated here below):]
:[Large pipe (white)]: Mayo
:[Small pipe (dark red)]: Nail polish
:[Medium pipe (light brown)]: Maple syrup

:[Below is a large panel with a caption at the top. And below this there are twenty circles in different sizes and with different color (or even texture). Each circle is labeled, for the five smallest the label is outside, in one case with an arrow indicating where the label belongs. The rest has the label inside. The text is in black except for four of those with text inside, but with red of black color. Here the text is white. The labels are indicated by color and size, going roughly from top left in reading order based on the position and size of circles not of position of the text:]

:<big>Actual size </big> (When viewed on a typical computer screen) 
:[Medium green blue and white spiral]: Toothpaste
:[Tiny dark red]: Nail polish
:[Big light blue with white specks]: Windshield washer fluid
:[Very tiny purple]: Silly putty
:[Medium light green]: Shampoo
:[Large dark yellow]: Honey
:[Very small blood red]: Donated blood
:[Tiny black]: Vanilla
:[Big red]: Ketchup
:[Medium dark red with chunks of in different green and lighter red colors]: Salsa
:[Small white]: Sunscreen
:[Very small light green]: Personal lubricant
:[Very tiny gray]: LCD liquid
:[Medium off-white]: Mayo
:[Very small black]: Printer ink
:[Small light brown]: Maple syrup
:[Small light green]: Conditioner
:[Medium yellow]: Mustard
:[Large light green]: Liquid soap
:[Big olive green]: Olive oil

:[The panel just described is indicated to fit into a small rectangle at the top left of the next panel below. There are four lines ending at the four corners of this small rectangle, two of these are going to the two bottom corners and the other two ends on the lower part of the panel just above the small rectangle. They are indicated to go under the panel and would hit the two top corners if extrapolated). The 11 largest circles are clearly seen, but most of the other circles can also be noted. The colors are the same but any features in the original circles as well as the labels are gone. The part of the black top frame of the next panel below is faded out to gray in between the section cut off by the two lines going to the bottom corners of the panel above. This rectangle indicated the increasing size compared to the first panel above.]

:[Apart from the insert mentioned above the second panel follows the same layout, but with 22 circles with even larger range of sizes. The panel is more than twice as long as the first panel. A Megan-like girl, but with white hair, is drawn at the top of the panel just left of the middle. Her hair close to the top, just below the line going to the right corner above. There are two medium and five smaller circles to her left and one small close to her head and one huge circle to her right. Her feet are less than a third down this panel standing on top of the next row of circles. In the bottom half of the panel there is a giant circle which almost touches the left side of the panel. There are smaller circles above it and down along the right side. One last circle is to the left almost at the bottom. At the very bottom is a slightly curving line to indicate a much much larger blue circle that only graces the panel (no. 23). There is a small green fish in this water to the left of the label. Below the labels are again listed as above. One label has a foot note. But it is written directly beneath the circle in which it is referenced. So it will be written together with the label on the next line. There is also one case with an arrow used to indicate where the label belongs.]

:[Medium dark gray]: Coffee
:[Very tiny gray]: Peanut butter
:[Very small gray with black specks]: Ice cream
:[Very small yellow with white specks]: Cheese
:[Large brown with white fizzing]: Soda
:[Tiny White]: Acetone
:[Tiny gray]: Liquor
:[Huge dark yellow]: Gasoline
:[Tiny White with blue and orange specks]: Yogurt
:[Big white]: Milk (cow)
:[Large light blue]: Bottled water
:[Small white]: Sugar
:[Large light gray with white specks]: Saliva
:[Very small light yellow]: Wine
:[Very small orange]: HFCS
:[Very tiny white]: Milk (human)
:[Gigantic dark gray]: Petroleum
:[Medium dark red with black texture]: Meat (mostly solid)
:[Small white]: Glass*
::<nowiki>*</nowiki>Solid at room temperature
:[Medium light brown]: Beer
:[Small gray brown]: Tea
:[Large gray]: Cement
:[Gracing bottom of panel light blue]: Public water

==Trivia==
*In addition to the what if? article, the relevancy of pipelines, particularly regarding public water, is heightened due to the ongoing public health crisis in {{w|Flint, Michigan}}, caused by recent (mis-)management of their public water system.<ref>McLaughlin, Elliot. [http://edition.cnn.com/2016/01/18/us/flint-michigan-water-crisis-five-things/index.html “5 things to know about Flint's water crisis”], '{{w|CNN}}', January 21 2016. Retrieved 1 March 2016.</ref>
**Studies have shown that temporary use of the Flint River as a water source caused corrosive water to leach lead from old pipes, causing lead poisoning in many residents, particularly children; other ill effects in addition to lead have been noted.
**The crisis has lead to a public outcry against the state "emergency financial management" team appointed and supervised by the state executive (Gov. Rick Snyder and staff) and an outpouring of support from nearby communities such as Metro Detroit via bottled water donations to Flint residents.
*This is the third comic posted on Leap Day ({{w|February 29}}); the previous ones were:
**[[390: Nightmares]] also like this one on a Friday in 2008 and
**[[1023: Late-Night PBS]] on a Wednesday in 2012.
**If the current M-W-F schedule continues, the next such comic will not happen before 2036 when the leap day again falls on a Friday.
**It may also be interesting to note that the first three leap years after xkcd began (in just over 10 years) all fell on a release day, then followed by a break of 20 years. In addition, three of these first four leap days all fell on a Friday.

==References==
<references />

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Charts]]
[[Category:Food]]
[[Category:Animals]]

Talk:1649: Pipelines

2016-02-29T23:20:24Z

188.114.106.47:

1649: Pipelines

2016-02-29T21:32:54Z

188.114.106.47: /* Trivia */

1649: Pipelines

2016-02-29T19:59:31Z

188.114.106.47: Added Transcript

Talk:1645: Toasts

2016-02-19T19:14:45Z

188.114.106.47:

Are we sure "single-payer" is not a typo, making it "single-player" to fit with "RealPlayer"? [[Special:Contributions/162.158.202.144|162.158.202.144]] 11:18, 19 February 2016 (UTC)
:That's what I thought as well. [[User:Maplestrip|Maplestrip]] ([[User talk:Maplestrip|talk]]) 11:19, 19 February 2016 (UTC)
::Yes it is not a typo as Single-payer refers to Single-payer healthcare as now explained above. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 12:27, 19 February 2016 (UTC)

I'm fairly certain this comic is in reference to the "Fall Out Boy" song, entitled "Champagne For My Real Friends And Real Pain For My Sham Friends", from their 2005 album "From Under The Cork Tree"; though he could also be referencing Francis Bacon, Tom Waits, the television show Happy Days, the show One Tree Hill, or Spike Lee's "25th Hour". If you do a Google search for the phrase, it requires some exclusions (like -"fall out boy") to prevent that song from dominating the first page of results. It's one of their most famous titles.[[Special:Contributions/108.162.216.48|108.162.216.48]] 12:00, 19 February 2016 (UTC)
:Please just include links to these relevant songs etc. in the explanation. And thanks for the comment. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 12:27, 19 February 2016 (UTC)

:White Hat thus wish that his real friends have access to free health care, and all his single friends will get RealPlayer. Maybe he wishes to impress these singles with a present and hope he gets lucky. (If it has been Hairy this would have seemed very likely… see 1178: Pickup Artists. White Hat has not previously displayed thse tendencies to clearly).
::I doubt this. RealPlayer was a terrible piece of software nobody wanted and was often bundled with spyware (see wikipedia)
:::Well I wrote it and disagree. Since it has been on the market for 10 years, and has just been updated, then it cannot be that terrible, and I cannot find what you say should be on Wikipedia to show that it should be bad still at present. But of course if it has just been upgraded to a new name, then giving the old app is not so hot. Has addressed this in the explanation. Aqlso please feel free to update something you find in error yourself ;-) --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 12:27, 19 February 2016 (UTC)
:::: You wrote the source code for RealPlayer or the explantation here? If first you should know why it has such a bad reputation, if second: RealPlayer was some time ago bundled with spyware that sent unique ID's with other userdata to a server, also it had several other problems and is considered by several tech magazines as one of the worst software programs. It might not mention that in the english wikipedia but the german has a section for it. https://de.wikipedia.org/wiki/RealPlayer#Kritik To stay on topic: Maybe he wishes his single friends RealPlayer so they need his help to get the malware off their computers and he can impress them? Is way more probable from my experience. [[User:Bobylein|Bobylein]] ([[User talk:Bobylein|talk]]) 12:43, 19 February 2016 (UTC)
:::::And to stay in English for those who are not native Germans... we can also take the English wiki link to the {{w|RealPlayer#Reviews_and_critiques|critique}}! ;-) As I can read from that it was in 1999 and 2007 that it was bad, and as this is now 9 years ago at least, and they keep updating it, the errors may have been improved out? Why would anyone else continue to make it better or using it? But again feel free to update the explanation even more with these kinds of info. I still think it is not so bad to get a free app, unless it is the spy ware version. I expect this doesn't exist anymore, and it is not explicitly stated that he would give them that.--[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 12:53, 19 February 2016 (UTC)

None of these negative interpretations of RealPlayer fit with White Hat's personality.--[[User:Nekoninda|Nekoninda]] 13:34, 19 February 2016 (UTC)

This is the first comic with [[Hair Bun Girl]] since [[User:Jkshapiro|Jkshapiro]] proposed a name change to for instance Hairbun. I take this chance to get more comments on this subject by posting his note, that is now posted on her site: Should [[Hair Bun Girl]] be renamed to Hairbun? [http://www.explainxkcd.com/wiki/index.php/explain_xkcd:Community_portal/Proposals#Rename_Hair_Bun_Girl See here]
--[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 13:04, 19 February 2016 (UTC)

As a non-native speaker, when I first read it, I though "petty friends" could mean "pet animals" and "real coats" would then refer to them having real fur as coats - which is often an aspect animal friends don't like on certain rich people (wearing real fur coats), but completely normal for the animals itself.
Also "Realplayer", aside from its repuration as not-so-useable software, is used for video streaming, including on porn sites. So (male?) "single friends", being single, might have to resort using Realplayer/porn to satisfy their needs.
[[User:Zefiro|Zefiro]] ([[User talk:Zefiro|talk]]) 13:16, 19 February 2016 (UTC)

In regard to the second tile, I read it at first to mean that the girl's real friends are pseudopods and that all her human acquaintances are "pseudo-friends". This would be like a stereotypical "lab nerd". Doesn't track with any other slide, but I thought it might add to the conversation...

"Real bugs" for my "Lady Friends" - I took that as having sexual undertones. But maybe that was just me. --[[Special:Contributions/188.114.106.47|188.114.106.47]] 19:14, 19 February 2016 (UTC)

1638: Backslashes

2016-02-03T05:23:30Z

188.114.106.47: Escape pipe character in template.

{{comic
| number = 1638
| date = February 3, 2016
| title = Backslashes
| image = backslashes.png
| titletext = I searched my .bash_history for the line with the highest ratio of special characters to regular alphanumeric characters, and the winner was: cat out.txt | grep -o "\\\[[(].*\\\[\])][^)\]]*$" ... I have no memory of this and no idea what I was trying to do, but I sure hope it worked.
}}

==Explanation==
{{incomplete|Created by a BOT - Please change this comment when editing this page.}}

==Transcript==
{{incomplete transcript}}

{{comic discussion}}

1600: MarketWatch

2015-11-08T03:00:08Z

188.114.106.47: /* Explanation */

{{comic
| number = 1600
| date = November 6, 2015
| title = MarketWatch
| image = marketwatch.png
| titletext = Markets have been rocked by a second day of uncertainty after someone set up a giant Ouija board on the NYSE wall controlled collectively by the movement of the stock tickers.
}}

==Explanation==
DC is {{w|Washington, D.C.}} The DC skyline shown here has the {{w|Lincoln Memorial}}, the {{w|Washington Monument}} (an obelisk) and the {{w|United States Capitol}}, which are located in a line down the {{w|National Mall}}. The Washington Monument is not equidistant from the other two, so it would not be possible to get a view of the skyline that exactly matches the line shown.

{{w|MarketWatchdeeznutshells }} is a web site focused on stocks and the {{w|Dow Jones Industrial Average}} (DJIA as written on the screen), commonly referred to as the Dow, is a {{w|stock market index}}, meaning that it is a general indicator of how the market is running (in this case, an aggregate of how 30 major industrial companies are doing). The stock market is famous for having unpredictable price swings, but for them to specifically make a tracing of the skyline of Washington, D.C. (or any recognizable image) would definitely weird out most investors.

As seen in [[276: Fixed Width]], unusual patterns can be addictive to the point of harming those involved in the pattern's creation. The joke, however, rests in the fact that stock investors probably have aa pattern rather than pursuing gains would be uncharacteristic. Although some investors follow superstitious behavior (such as making trades to 这地方实在是太美太独特了，so is you[呲牙]follow a pattern rather then make 今天去参加同学的微博已经开more obvious profits), many trades are now made by automated computer systems, which may recognize some types of patterns, but would not recognize the DC for the stock market to continue to follow such a pattern merely because of the efforts of the human traders.

Buying and selling stocks based on patterns in the price charts is a common, but controversial, method of investing. Many {{w|day trader}}s and some professional investors still use stock patterns ({{w|headshoulders (chart pattern)|head and shoulders}}, {{w|trend line (technical analysis)|trend lines}}, etc.) to make trades (see for instance [http://www.investopedia.com/university/charts/ Analyzing Chart Patterns]). Most professional investors and finance academics believe that this practice is random (see strong and weak {{w|efficient markets hypothesis}}).

In the title text it is noted that the markets again has been shaken by uncertainty (for the second day running, after the DC skyline incidence from the main comic). This time it was because someone at NYSE (ose.)

The ouija is also known as a spirit board, a flat board markedxfkgdixigdidgiyduf letters of the alphabet, the numbers 0–9, the words "yes", "no" and a possibly a few other. A movable indicator indicates a spirit's message by spelling it out on the board during a séance.

{{w|Ticker tape}} was an early way of transmitting stock price, and it was run through a '''stock ticker''' which printed abbreviated company names as alphabetic symbols followed by numeric stock transaction worried (also maybe by the cryptic messages from beyond they are receiving via the stock ticker) explaining the uncertainty. Of course some people might claim that this is not so far from how stock brokers decides what to do anyway…

==Transcript==
:[Ponytail is a news presenter reporting on the days price swings in the DOW. To the left of her is a chart showing how the index suddenly went from "random" to tracing out Washington DC's sky line starting with the Lincoln Memorial, then the obelisk of the Washington Monument and finally the United States Capitol. After that the index goes back to normal "randomness". Two words are written at the top of the screen to the left and right:]
:MarketWatch
:DJIA

:Ponytail:
::Wild swings on the markets today
::as investors noticed the DOW was
::tracing out a silhouette of the DC
::skyline, and everyone got too weirded
::out to break the pattern until they
::finished the capitol building.

{{comic discussion}}

[[Category:Comics featuring Ponytail]]
[[Category:Charts]]