2417: 1/1,000th Scale World

2021-01-27T22:51:59Z

172.68.86.112: Fix goldfish text

{{comic
| number = 2417
| date = January 27, 2021
| title = 1/1,000th Scale World
| image = 1_1000th_scale_world.png
| titletext = We're worried that a regular whale will get into a 30-foot-deep ocean trench section and filter-feed on all the tiny whales.
}}

==Explanation==
{{incomplete|Created by a STATUE OF LIBERTY MINIFIG. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}

This comic is a follow up to a previous two, [[2412: 1/100,000th Scale World]] and [[2411: 1/10,000th Scale World]], with a smaller scale and thus a larger world. As in the previous comics, [[Randall]] has another seemingly complete copy of Earth, this time at a 1:1000 scale, with various features and warnings labeled. Again, real-world features and phenomena are replicated at scale. As before, the model is very extensive, with several underground neutrino detectors/observatories being replicated.

Several of the warnings point out humorous consequences of the scale, such as goldfish eating blue whales.

===Table===
{| class="wikitable"
!Rule
!Reason
!Notes
|-
| Keep hot objects off the ice sheet over the south pole neutrino observatory
| Hot objects may emit Cherenkov radiation, which would result in the observatory detecting false positives of neutrino observations.
|
|-
| Be patient: Niagara falls will take a few minutes to fill your water glass
| The flow rate is scaled down with the size. According to https://what-if.xkcd.com/147/, the Niagara Falls flow is regulated to 100.000 cubic feet per second on the tourist season and to 50.000 cubic feet per second offseason and at night. Once scaled to 1/1000, that flow would be 2.83 or 1.41ml per second. If a standard glass of water is 250ml, it would take 1-2 minutes for the waterfall to fill it.

However, a 1/1000th replica of scale Niagra falls would be over a meter wide, so without some kind of system to divert the whole flow into one spot, it would not be possible to fill a glass this quickly. Also, the height of the scaled-down Niagra falls would be 5cm, with another 5cm between the water level and the riverbed, so it might be difficult to fill a glass depending on its height.
| This item is likely to be a reference to the famous Arthur C. Clarke quote: "Getting information from the internet is like getting a glass of water from the Niagara Falls."
|-
| Watch for small planes
| Taking the popular Cessna 172 as an example, 1/1000th scale small planes would be about 8mm in length, and cruise at speeds of about 6cm/s, much slower than comparable flying insects. A Cessna of that size traveling at that speed would probably cause much more damage to itself than a person if it crashed into one, so the warning is probably there to protect the models rather than the guests.
|
|-
| Warning! Choking hazard! Keep small children away from ascending/descending airliners
| Airplanes are apparently small enough for children to fit into their mouths but large enough to potentially make them choke.
| In the US, small parts are defined by [https://www.cpsc.gov/Business--Manufacturing/Business-Education/Business-Guidance/Small-Parts-for-Toys-and-Childrens-Products 16 C.F.R. Part 1501.2] as fitting in a cylindrical test fixture of 1.25 inches diameter that approximates the size of the fully expanded throat of a child under three years old. Once scaled, any object smaller than 31.75 meters would fit in that cylinder. A lot of medium-sized and small airplanes would qualify. Furthermore, since pieces that break off during testing that simulates use or abuse by children could also pose a choking hazard, even large airliners are also a choking hazard because stripped wings and parts of the fuselage would fit in the required size.
|-
| Do not remove safety caps
| This is a reference to the warning, "Be careful not to step on cities with especially pointy towers, like Toronto, Seattle, and Dubai" from [[2411: 1/10,000th Scale World]]. It's possible that many visitors to that scaled world did not heed the warnings and complained to the scaled world's creators, causing them to cover pointy towers with safety caps for this scaled world. However, now there are [[Black Hat|people who apparently want to cause harm to others]], or at least don't care about not causing harm to others, by removing these safety caps.
The tip of the Burj Khalifa - the tallest building in the scale world - appears to be about a meter and a half wide, or 1.5mm at 1/1000th scale.
|
|-
| No open flames in Zeppelin area
| Zeppelins are filled with hydrogen due to its very low density, which allows them to float. However, it is also very flammable and prone to explosions. The most famous of these Zeppelin disasters was when the {{w|Hindenburg disaster|Hindenburg exploded}} in 1937.
|-
| Do not bother the meteor crater ducks
| Meteor Crater in Arizona is over a kilometer wide, so at 1/1000 scale it could be a small duck pond of 1.186m diameter, and 17cm deep at its deepest point. This is (barely) enough space for a duck to swim in if filled to the brim with water.
| Meteor Crater is not filled with water, or ducks, in real life.
|-
| Trip hazard: The Gateway Arch
| The {{w|Gateway Arch}} is a monument in Saint Louis, Missouri. Being a 192 m high arch, once scaled it would be 19.2 cm high, ideal for tripping.
|
|-
| Drone altitude limit
| The FAA drone altitude limit is 400ft above the ground, which would be about 12cm in 1/1000th scale. This appears to be the number Randall is using, as the limit in the comic is about the same height as the pyramids, which are also around 400ft tall in the real world.
|
|-
| Do not mix up the USS Enterprises
|
The ship is presumably a model of the USS Enterprise (CVN-65), the longest naval vessel ever built, which would be 34cm long in 1/1000th scale.
The spaceship is the USS Enterprise (NCC-1701) from the Star Trek franchise.
It's unclear whether mixing up the models is prohibited because it would damage them, or simply because that's not where they are supposed to be.
The Starship Enterprise might be corroded by seawater, or unable to handle external pressure (spacecraft are designed for the exact opposite pressures in a vacuum). If lifted into the air, the Aircraft Carrier Enterprise would probably fall back down because it can't fly (and be damaged or even destroyed upon hitting the ground or water surface), but then again, it's unclear how the model Enterprise is able to fly or hover.
The Enterprise from the JJ Abrams films has been seen to hide underwater and take off again without significant problems, and the Original Series version has been seen to fly (high) in the Earth's atmosphere on several occasions. However, it is unclear whether other versions of the Enterprise also possess this standard operational ability, nor which version is represented in the comic.
|
|-
| No connecting the Dead Sea to the ocean
| If there are models of Israeli and Jordanian cities next to the Dead Sea, they could get damaged by the water. Also, the model world would be less accurate because the Dead Sea is not connected to the ocean in real life.
|
|-
| Do not let ants into the Sudbury Neutrino Observatory
| Getting them out of the tunnel network would probably be difficult.
|
|-
| Only one person on the Golden Gate Tightrope at a time
| The {{w|Golden Gate Bridge}} is a suspension bridge in San Francisco, of width 27m. Scaled-down, it would be 2.7cm wide and it would be tempting to use it as a tightrope.
| In 1987, approximately 300,000 people [https://www.sfgate.com/local-donotuse/article/Golden-Gate-bridge-walk-1987-anniversary-disaster-13896571.php walked across the Golden Gate Bridge], which could be the largest weight it has supported: 80kg * 300,000 = 2.4*10^7kg. A visitor to the scaled world would expect to weigh (1000^3) times as much as a standard human: 8*(10^10), above the [https://www.vibrationdata.com/golden.htm total mass of the bridge]: 3.8*(10^8)
|-
| Do not remove Statue of Liberty LEGO minifig
| Whoever has made this model has decided to use a small LEGO minifigure rather than a more accurately sculpted replica of the Statue of Liberty. The person would likely not want it to be removed because it would then have to be replaced.
| LEGO has released a [https://www.lego.com/en-us/product/magnet-statue-of-liberty-2016-853600 Statue of Liberty minifigure] which is 5.3cm tall. The real Statue of Liberty, from head to toe, is 46 meters tall. At 1/1000 scale this would be a 4.6cm figurine, so the LEGO minifigure would indeed be an appropriate representation at that scale.
|-
| Please stop releasing goldfish in the ocean. They keep eating the blue whales.
| Blue whales usually grow to about 20m long in real life, meaning that at 1/1000th scale they would be only 2cm long, meaning that they could easily be consumed by a goldfish. Goldfish are omnivores, so they would eat tiny blue whales. But they are also freshwater fish, so would they survive long enough in seawater to put the whales at risk? This could perhaps be considered carping. And perhaps Randall's customers have access to [https://mashable.com/2017/09/20/saltwater-bearing-goldfish-australia/ Australian goldfish].
| This also begs the question of where one would get such tiny blue whales. In the mouseover text, Randall mentions that if real blue whales were to be released into the 1/1000th scale ocean they would filter-feed on the miniature versions. Blue whales usually eat minuscule krill; however, the tiny whales would provide a similarly-sized substitute.
|
|}

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

{{comic discussion}}

[[Category:Illustrations of scale]]
[[Category:Comics featuring Science Girl]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Cueball]]
[[Category:Scale World]]

Talk:2389: Unread

2020-11-26T00:05:02Z

172.68.86.112:

I have 27,333 unread emails. On the level of "Your email is important to me. Please wait and it'll get read eventually." [[User:Mikemk|Mikemk]] ([[User talk:Mikemk|talk]]) 00:25, 24 November 2020 (UTC)

Oh hai! https://i.imgur.com/FXt1AYq.png lol [[Special:Contributions/172.68.142.195|172.68.142.195]] 10:17, 24 November 2020 (UTC)

You are all wusses - about 2 weeks ago when I looked, my ex-wife had over 750,000 unread emails. She wouldn't let me take a screenshot :P [[Special:Contributions/172.68.86.112|172.68.86.112]] 00:05, 26 November 2020 (UTC)

This graph seems way off to me. It says 'percentage of messages', so the highest point should be at the far left. At some point, you will have a single message saying "Welcome to WhateverMessagingService", which will initially be unread, therefore 100%. When he's standing at the beginning looking at the icon that says 2 messages, that's probably 2 out of 3, or 2 out of 4. It could be back up at 100% depending on the service (does it auto-delete read notifications?), but it's likely lower than at the start. But for the first few weeks, I'd expect to see a series of tall peaks, gradually getting lower as the number of old read messages slowly increases, with flat valleys inbetween where everything is read. Then as you get into the habit of putting off reading them, the valleys start getting shallower until they swallow the peaks, and you get a slowly rising curve that eventually levels off pretty high.
This graph seems to rise forever at the end, which makes sense for a graph of the ''number'' of messages, but not for a ''percentage''. [[User:Angel|Angel]] ([[User talk:Angel|talk]]) 11:34, 24 November 2020 (UTC)

:It says 'percentage **marked** unread' [[User:Torzsmokus|Torzsmokus]] ([[User talk:Torzsmokus|talk]]) 13:58, 24 November 2020 (UTC)

::Perhaps a better axis label would be: "Messages marked unread 24 hours after receipt" or similar? [[User:OhFFS|OhFFS]] ([[User talk:OhFFS|talk]]) 18:22, 24 November 2020 (UTC)

:The graph would also be quite rough. I imagine it's been smoothed to make sense, and (especially if the time axis is very long) these irregularities would all but disappear over time. As indicated by the 'eventually' in "Every system eventually becomes email", Randall/Cueball has probably used this service for a while. [[User:BlackHat|BlackHat]] ([[User talk:BlackHat|talk]]) 16:00, 25 November 2020 (UTC)

Which is why everyone needs filters for sub-mailboxes. Of those 27,333 , 27 000 go into the "IgnoreThisCrap" mailbox, 300 go into "Respond by the end of the next Sprint," and 33 remain as candidates for reading maybe after lunch. [[User:Cellocgw|Cellocgw]] ([[User talk:Cellocgw|talk]]) 11:36, 24 November 2020 (UTC)

Should the incomplete tag be deleted? This seems complete to me. [[Special:Contributions/141.101.98.124|141.101.98.124]] 11:43, 24 November 2020 (UTC)

Should we link xkcd 1783?
[[Special:Contributions/172.69.34.208|172.69.34.208]] 18:24, 24 November 2020 (UTC)

:Good idea. Added. [[User:Orion205|Orion205]] ([[User talk:Orion205|talk]]) 03:54, 25 November 2020 (UTC)

There's one error in this comic. The curve at the right edge of the graph implies that the number of unread emails grows logistically on large enough timescales. In my experience, it's linear at best and exponential at worst. [[User:GreatWyrmGold|GreatWyrmGold]] ([[User talk:GreatWyrmGold|talk]]) 15:16, 25 November 2020 (UTC)

:While the ''number'' might better follow an exponential graph, the axis refers to the ''percent'' of unread messages. Since this can't be higher than 1, or 100%, the graph has to be logistic in order to cap at the maximum limit. Unless, of course, your inbox grows so quickly that you have more unread emails than emails, and for all we know that might happen. [[User:BlackHat|BlackHat]] ([[User talk:BlackHat|talk]]) 16:00, 25 November 2020 (UTC)

explain xkcd - User contributions [en]

2417: 1/1,000th Scale World

Talk:2389: Unread