explain xkcd - User contributions [en]

1331: Frequency

2014-02-18T06:40:12Z

108.162.249.117: /* Explanation */

{{comic
| number = 1331
| date = February 17, 2014
| title = Frequency
| image = frequency.png
| titletext = This comic shows estimated average frequency. I wanted to include the pitch drop experiment, but it turns out the gif format has some issues with decade-long loops.
}}
This comic is animated. Click on the date above the comic to see the original version.
==Explanation==
{{incomplete|Incomplete.}}
This comic shows a number of common events, arranged in a grid. Each of the events flashes with their average frequency.

For example, statistically a child is born somewhere on the world approximately every 0.24 seconds, or four times per second. Therefore the tile "One birth" blinks about 4 times per second.

The table below lists all the events and their duration / frequency. Some events make reference to other comics.

The title text refers to the {{w|Pitch drop experiment}} which measures the flow of a piece of pitch over many years. At room temperature, tar pitch flows at a very slow rate, taking several years to form a single drop. The title text jokes that Randall tried to include a tile that flashes about once every {{w|decade|ten years}}, but the tiles are all {{w|Animated GIF|animated GIFs}} and the file format does not support animations that long.

{| class="wikitable sortable"
!Picture
!Text
!Period (seconds)
!Frequency (per minute)
!Frequency (per year, N/I = not interesting)
!Explanation and/or references to other comics.
|-
|[[File:heartbeat.gif]]
|Heartbeat||0.86||70||32,785,200||The typical resting {{w|heart rate}} in adults is 60–80 beats per minute (bpm).
|-
|[[File:birth.gif]]
|One birth||0.24||250||131,490,000|| [[746: Birth]]
|-
|[[File:death.gif]]
|One death||0.56||107||56,360,000||
|-
|[[File:wikipedia.gif]]
|Someone edits Wikipedia||0.67||90||47,100,000||{{w|Wikipedia}} is an online, freely editable encyclopedia.
|-
|[[File:vibrator.gif]]
|Someone buys a vibrator||2.99||20||10,550,000 || [[600: Android Boyfriend]]
|-
|[[ File:car china.gif ]]
|China builds a car||1.89||32||16,700,000||
|-
|[[ File:car japan.gif ]]
|Japan builds a car||4.01||15||7,870,000||
|-
|[[ File:car germany.gif ]]
|Germany builds a car||5.8||10||5,440,000||
|-
|[[ File:car us.gif ]]
|The US builds a car||6.95||8.6||4,540,000||
|-
|[[ File:car elsewhere.gif ]]
|Someone else builds a car||1.03||58||30,640,000||
|-
|[[ File:kiss.gif ]]
|A European Union resident has their first kiss||5.53||11||5,700,000||
|-
|[[ File:fire dept.gif ]]
|A US fire department puts out a fire||23||2.6||1,370,000||
|-
|[[ File:holeinone.gif ]]
|Someone hits a hole-in-one||180||20 times per hour||175,320||A {{w|hole in one}} is a feat in {{w|golf}} in which the player hits the ball directly from the tee into the cup with one shot.
|-
|[[ File:turnsignal1.gif ]]
|My turn signal blinks||0.94||64||N/I||See below
|-
|[[ File:turnsignal2.gif ]]
|The turn signal of the car in front of me blinks||0.9||67||N/I||This, together with the previous item, forms a reference to [[165: Turn Signals]].
|-
|[[ File:earthquake1.gif ]]
|Earthquake (magnitude 1)||2.43||25||13,000,000|| [[711: Seismograph]]
|-
|[[ File:earthquake2.gif ]]
|Earthquake (magnitude 2)||24.26||2.5||1,300,000|| Review [http://earthquake.usgs.gov/earthquakes/map/#%7B%22feed%22%3A%221day_all%22%2C%22search%22%3Anull%2C%22sort%22%3A%22largest%22%2C%22basemap%22%3A%22grayscale%22%2C%22autoUpdate%22%3Atrue%2C%22restrictListToMap%22%3Atrue%2C%22timeZone%22%3A%22local%22%2C%22mapposition%22%3A%5B%5B-84.47406458459159%2C-25.6640625%5D%2C%5B84.4740645845916%2C425.390625%5D%5D%2C%22overlays%22%3A%7B%22plates%22%3Atrue%7D%2C%22viewModes%22%3A%7B%22map%22%3Atrue%2C%22list%22%3Atrue%2C%22settings%22%3Atrue%2C%22help%22%3Afalse%7D%7D USGS's Quake Map] for verification.
|-
|[[ File:earthquake3.gif ]]
|Earthquake (magnitude 3)||242.6||15 times per hour||130,000|| [[1037: Umwelt#Earthquake-Blizzard|1037: Umwelt]]
|-
|[[ File:earthquake4.gif ]]
|Earthquake (magnitude 4)||2426||1.5 times per hour||13,000|| [[723: Seismic Waves]]; below this magnitude earthquakes pass by largely unnoticed by Tweeters.[http://earthquake.usgs.gov/learn/topics/mag_vs_int.php]
|-
|[[ File:parliament toilet.gif ]]
|A member of the UK parliament flushes a toilet||10.06||6||3,140,000||Note that probably during the daytime in Britain such a toilet is flushed 8.5 times per minute, while at night it is flushed only 1 time per minute.
|-
|[[ File:flight.gif ]]
|An airline flight takes off||0.93||65||34,000,000||
|-
|[[ File:book mockingbird.gif ]]
|Someone buys ''To Kill a Mockingbird''||42.05||1.4||750,000||“{{w|To Kill a Mockingbird}}” is a famous novel by {{w|Harper Lee}}.
|-
|[[ File:cat mockingbird.gif ]]
|Someone's pet cat kills a mockingbird||1.82||33||17,340,000||Whereas the previous item references the well-known book “To Kill a Mockingbird”, this one talks about {{w|Mockingbird|mockingbirds}} being literally killed (in this case, by cats). There are 45 million mockingbirds in the world;[http://animaldiversity.ummz.umich.edu/accounts/Mimus_polyglottos/] this means that according to Randall, cats kill 39% of mockingbirds in one year, i.e. in 2.5 years they are able to kill all mockingbirds (excluding the ones that are born in the meantime).
|-
|[[ File:phoenixshoes.gif ]]
|Someone in Phoenix buys new shoes||1.08||56||29,200,000||Since {{w|Phoenix metropolitan area|metro Phoenix}} has 4,200,000 inhabitants, according to Randall people in Phoenix buy 7 pairs of shoes per capita per year.
|-
|[[ File:phoenix.gif ]]
|Someone in Phoenix puts on a condom||2.05||29||15,390,000||
|-
|[[ File:keys.gif ]]
|Someone locks their keys in their car||2.43||25||13,000,000||
|-
|[[ File:amelia.gif ]]
|A Sagittarius named Amelia drinks a soda||7.79||7.7||4,000,000||Randall Munroe is a [http://blog.xkcd.com/2014/01/31/the-baby-name-wizard/ fan of The Baby Name Wizard] blog and its [http://www.babynamewizard.com Name Voyager] tool which shows that "[http://www.babynamewizard.com/baby-name/girl/amelia Amelia]" has recently exploded in popularity. 
This particular frequency is taken from:
* The number of persons called {{w|Amelia_(given_name)|Amelia}} ([http://howmanyofme.com/ est. 82,572 people in the U.S.])
* The number of persons born between November 22nd and December 22nd under the astrological sign of {{w|Sagittarius (astrology)|Sagittarius}} (~1/12th of the population, i.e. approximately 6881 Amelias in the U.S.)
* The frequency of soda (soft drinks) being drunk (216 liters per person per year in the U.S.[http://www.nationmaster.com/graph/foo_sof_dri_con-food-soft-drink-consumption]).
According to our figures, 6881 Amelias drink 1,44 million liters of soft drinks per year in the United States alone, which means that Randall's figures only account for American Amelias (drinking 356 cc or 12 fl. oz. of soda in each drink).
|-
|[[ File:dogbite.gif ]]
|A dog bites someone in the US||7.01||8.6||4,500,000||
|-
|[[ File:bike.gif ]]
|Someone steals a bicycle||24.93||2.4||1,265,000||
|-
|[[ File:eagle.gif ]]
|A bald eagle catches a fish||2.69||22||11,700,000||
|-
|[[ File:bottles.gif ]]
|50,000 plastic bottles are produced||1.27||2.36 million bottles||1.24 trillion||
|-
|[[ File:recycled.gif ]]
|50,000 plastic bottles are recycled||4.64||646,552 bottles||340 billion||27% of the plastic bottles manufactured get [[885: Recycling|recycled]]
|-
|[[ File:meteor.gif ]]
|A bright meteor is visible somewhere||1.15||52||N/I||
|-
|[[ File:oldfaithful.gif ]]
|Old Faithful erupts||5640 (94 minutes)||15 times per day||5,595||{{w|Old Faithful}} is a geyser in {{w|Yellowstone National Park}} in the US, that tends to erupt every 65 or 91 minutes. XKCD's period of 1h 34m falls between the [http://geysertimes.org/getGeyserInfo.php?geyserID=2 mean and median of recent Old Faithful eruptions] and corresponds to a [http://geysertimes.org/getSingleEruption.php?id=645135 February 16, 2014 eruption].
|-
|[[ File:shark.gif ]]
|A fishing boat catches a shark||0.83||72||38,000,000|| [[1326: Sharks]]
|-
|[[ File:us cancer.gif ]]
|Someone in the US is diagnosed with cancer||18.99||3.2||1,660,000|| [[881: Probability]]
|-
|[[ File:us cancer death.gif ]]
|Someone in the US dies from cancer||54.34||1.1||580,000|| [[881: Probability]]
|-
|[[ File:dog.gif ]]
|Someone adopts a dog from a shelter||15.6||3.8||2,000,000||
|-
|[[ File:cat.gif ]]
|Someone adopts a cat from a shelter||21.3||2.8||1,5000,000||
|-
|[[ File:wedding.gif ]]
|Someone gets married||0.75||80||42,000,000||
|-
|[[ File:domain.gif ]]
|Someone registers a domain||0.64||94||49,300,000 ||
|-
|[[ File:house.gif ]]
|Someone in the US buys a house||6.22||9.6||5,000,000||
|-
|[[ File:tattoo.gif ]]
|Someone in the US gets a tattoo||2.06||29||15,300,000||
|-
|[[ File:pulsar.gif ]]
|The star PSR J1748-2446AD rotates 1,000 times||1.4||43,000 rotations||N/I||{{w|PSR J1748-2446ad}} is the fastest spinning {{w|pulsar}} known.
|-
|[[ File:facebook.gif ]]
|Someone lies about their age to sign up for Facebook||4.32||14||600,000 per month||To sign up for Facebook, [https://www.facebook.com/help/210644045634222 the user must claim to be at least 13 years old]. This is a reflection of the U.S. {{w|Children's Online Privacy Protection Act}}.
|-
|[[ File:iphone.gif ]]
|Someone breaks an iPhone screen||0.93||65||34,000,000||
|-
|[[ File:littleleague.gif ]]
|A Little League player strikes out||1.23||49||N/I||{{w|Little League Baseball|Little League}} is a system of local youth baseball and softball competitions. A {{w|strikeout}} is a situation in baseball and softball.
|-
|[[ File:ndsex.gif ]]
|Someone has sex in North Dakota||1.38||43||22,900,000||Since {{w|North Dakota}} has 723,000 inhabitants (ranked the 48th state), and if we estimate the sexually active population as 80% (and if ''someone'' means ''a couple)'' this means that people in North Dakota have sex 79.1 times a year. It is estimated that 3.93% of the world population has sex on a given day;[http://geography.about.com/od/culturalgeography/a/geographyofsex.htm] Randall's rate for North Dakota is 17.3% which is not low.
|-
|[[ File:bieber.gif ]]
|Justin Bieber gains a follower on Twitter||4.73||13||556,000 per month|| [[802: Online Communities 2#Twitter Region|802: Online Communities 2]];  {{w|Justin Bieber}} is a Canadian pop music singer whose [https://twitter.com/justinbieber Twitter account] is extremely popular
|-
|[[ File:denverpizza.gif ]]
|Someone in Denver orders pizza||1.27||47||2,000,000|| [[778: Scheduling]]
|}

==Transcript==
:[Repetitive events are written in grey and arranged in a grid. Each statement pulses to black and then returns to grey at an interval characteristic of the named event.]

{| style="text-align:center;"
|- style="vertical-align: top; background-color:#eeeeee;"
|Heartbeat (0.86 sec)
|One birth (0.24 sec)
|One death (0.56 sec)
|Someone edits Wikipedia (0.67 sec)
|Someone buys a vibrator (2.99 sec)
|- style="vertical-align: top;"
|China builds a car (1.89 sec)
|Japan builds a car (4.01 sec)
|Germany builds a car (5.8 sec)
|The US builds a car (6.95 sec)
|Someone else builds a car (1.03 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|A European Union resident has their first kiss (5.53 sec)
|A US fire department puts out a fire (23 sec)
|Someone hits a hole-in-one (180 sec)
|My turn signal blinks (0.94 sec)
|The turn signal of the car in front of me blinks (0.9 sec)
|- style="vertical-align: top;"
|Earthquake (magnitude 1) (2.43 sec)
|Earthquake (magnitude 2) (24.26 sec)
|Earthquake (magnitude 3) (242.6 sec)
|Earthquake (magnitude 4) (2426 sec, 42 min)
|Member of the UK Parliament flushes a toilet (10.06 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|An airline flight takes off (0.93 sec)
|Someone buys ''To Kill a Mockingbird'' (42.05 sec)
|Someone's pet cat kills a mockingbird (1.82 sec)
|Someone in Phoenix buys new shoes (1.08 sec)
|Someone in Phoenix puts on a condom (2.05 sec)
|- style="vertical-align: top;"
|Someone locks their keys in their car (2.43 sec)
|A Sagittarius named Amelia drinks a soda (7.79 sec)
|A dog bites someone in the US (7.01 sec)
|Someone steals a bicycle (24.93 sec)
|A bald eagle catches a fish (2.69 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|50,000 plastic bottles are produced (1.27 sec)
|50,000 plastic bottles are recycled (4.64 sec)
|A bright meteor is visible somewhere (1.15 sec)
|Old Faithful erupts (5640 sec, 94 min)
|A fishing boat catches a shark (0.83 sec)
|- style="vertical-align: top;"
|Someone in the US is diagnosed with cancer (18.99 sec)
|Someone in the US dies from cancer (54.34 sec)
|Someone adopts a dog from a shelter (15.6 sec)
|Someone adopts a cat from a shelter (21.3 sec)
|Someone gets married (0.75 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|Someone registers a domain (0.64 sec)
|Someone in the US buys a house (6.22 sec)
|Someone in the US gets a tattoo (2.06 sec)
|The star ''PSR J1748-2446ad'' rotates 1,000 times (1.4 sec)
|Someone lies about their age to sign up for Facebook (4.32 sec)
|- style="vertical-align: top;"
|Someone breaks an iPhone screen (0.93 sec)
|A little league player strikes out (1.23 sec)
|Someone has sex in North Dakota (1.38 sec)
|Justin Bieber gains a follower on Twitter (4.73 sec)
|Someone in Denver orders a pizza (1.27 sec)
|}

{{comic discussion}}
[[Category:Dynamic comics]]
[[Category:Charts]]

1331: Frequency

2014-02-18T06:38:11Z

108.162.249.117: /* Explanation */

{{comic
| number = 1331
| date = February 17, 2014
| title = Frequency
| image = frequency.png
| titletext = This comic shows estimated average frequency. I wanted to include the pitch drop experiment, but it turns out the gif format has some issues with decade-long loops.
}}
This comic is animated. Click on the date above the comic to see the original version.
==Explanation==
{{incomplete|Incomplete.}}
This comic shows a number of common events, arranged in a grid. Each of the events flashes with their average frequency.

For example, statistically a child is born somewhere on the world approximately every 0.24 seconds, or four times per second. Therefore the tile "One birth" blinks about 4 times per second.

The table below lists all the events and their duration / frequency. Some events make reference to other comics.

The title text refers to the {{w|Pitch drop experiment}} which measures the flow of a piece of pitch over many years. At room temperature, tar pitch flows at a very slow rate, taking several years to form a single drop. The title text jokes that Randall tried to include a tile that flashes about once every {{w|decade|ten years}}, but the tiles are all {{w|Animated GIF|animated GIFs}} and the file format does not support animations that long.

{| class="wikitable sortable"
!Picture
!Text
!Period (seconds)
!Frequency (per minute)
!Frequency (per year, N/I = not interesting)
!Explanation and/or references to other comics.
|-
|[[File:heartbeat.gif]]
|Heartbeat||0.86||70||32,785,200||The normal human {{w|heart rate}} ranges from 60–100 bpm.
|-
|[[File:birth.gif]]
|One birth||0.24||250||131,490,000|| [[746: Birth]]
|-
|[[File:death.gif]]
|One death||0.56||107||56,360,000||
|-
|[[File:wikipedia.gif]]
|Someone edits Wikipedia||0.67||90||47,100,000||{{w|Wikipedia}} is an online, freely editable encyclopedia.
|-
|[[File:vibrator.gif]]
|Someone buys a vibrator||2.99||20||10,550,000 || [[600: Android Boyfriend]]
|-
|[[ File:car china.gif ]]
|China builds a car||1.89||32||16,700,000||
|-
|[[ File:car japan.gif ]]
|Japan builds a car||4.01||15||7,870,000||
|-
|[[ File:car germany.gif ]]
|Germany builds a car||5.8||10||5,440,000||
|-
|[[ File:car us.gif ]]
|The US builds a car||6.95||8.6||4,540,000||
|-
|[[ File:car elsewhere.gif ]]
|Someone else builds a car||1.03||58||30,640,000||
|-
|[[ File:kiss.gif ]]
|A European Union resident has their first kiss||5.53||11||5,700,000||
|-
|[[ File:fire dept.gif ]]
|A US fire department puts out a fire||23||2.6||1,370,000||
|-
|[[ File:holeinone.gif ]]
|Someone hits a hole-in-one||180||20 times per hour||175,320||A {{w|hole in one}} is a feat in {{w|golf}} in which the player hits the ball directly from the tee into the cup with one shot.
|-
|[[ File:turnsignal1.gif ]]
|My turn signal blinks||0.94||64||N/I||See below
|-
|[[ File:turnsignal2.gif ]]
|The turn signal of the car in front of me blinks||0.9||67||N/I||This, together with the previous item, forms a reference to [[165: Turn Signals]].
|-
|[[ File:earthquake1.gif ]]
|Earthquake (magnitude 1)||2.43||25||13,000,000|| [[711: Seismograph]]
|-
|[[ File:earthquake2.gif ]]
|Earthquake (magnitude 2)||24.26||2.5||1,300,000|| Review [http://earthquake.usgs.gov/earthquakes/map/#%7B%22feed%22%3A%221day_all%22%2C%22search%22%3Anull%2C%22sort%22%3A%22largest%22%2C%22basemap%22%3A%22grayscale%22%2C%22autoUpdate%22%3Atrue%2C%22restrictListToMap%22%3Atrue%2C%22timeZone%22%3A%22local%22%2C%22mapposition%22%3A%5B%5B-84.47406458459159%2C-25.6640625%5D%2C%5B84.4740645845916%2C425.390625%5D%5D%2C%22overlays%22%3A%7B%22plates%22%3Atrue%7D%2C%22viewModes%22%3A%7B%22map%22%3Atrue%2C%22list%22%3Atrue%2C%22settings%22%3Atrue%2C%22help%22%3Afalse%7D%7D USGS's Quake Map] for verification.
|-
|[[ File:earthquake3.gif ]]
|Earthquake (magnitude 3)||242.6||15 times per hour||130,000|| [[1037: Umwelt#Earthquake-Blizzard|1037: Umwelt]]
|-
|[[ File:earthquake4.gif ]]
|Earthquake (magnitude 4)||2426||1.5 times per hour||13,000|| [[723: Seismic Waves]]; below this magnitude earthquakes pass by largely unnoticed by Tweeters.[http://earthquake.usgs.gov/learn/topics/mag_vs_int.php]
|-
|[[ File:parliament toilet.gif ]]
|A member of the UK parliament flushes a toilet||10.06||6||3,140,000||Note that probably during the daytime in Britain such a toilet is flushed 8.5 times per minute, while at night it is flushed only 1 time per minute.
|-
|[[ File:flight.gif ]]
|An airline flight takes off||0.93||65||34,000,000||
|-
|[[ File:book mockingbird.gif ]]
|Someone buys ''To Kill a Mockingbird''||42.05||1.4||750,000||“{{w|To Kill a Mockingbird}}” is a famous novel by {{w|Harper Lee}}.
|-
|[[ File:cat mockingbird.gif ]]
|Someone's pet cat kills a mockingbird||1.82||33||17,340,000||Whereas the previous item references the well-known book “To Kill a Mockingbird”, this one talks about {{w|Mockingbird|mockingbirds}} being literally killed (in this case, by cats). There are 45 million mockingbirds in the world;[http://animaldiversity.ummz.umich.edu/accounts/Mimus_polyglottos/] this means that according to Randall, cats kill 39% of mockingbirds in one year, i.e. in 2.5 years they are able to kill all mockingbirds (excluding the ones that are born in the meantime).
|-
|[[ File:phoenixshoes.gif ]]
|Someone in Phoenix buys new shoes||1.08||56||29,200,000||Since {{w|Phoenix metropolitan area|metro Phoenix}} has 4,200,000 inhabitants, according to Randall people in Phoenix buy 7 pairs of shoes per capita per year.
|-
|[[ File:phoenix.gif ]]
|Someone in Phoenix puts on a condom||2.05||29||15,390,000||
|-
|[[ File:keys.gif ]]
|Someone locks their keys in their car||2.43||25||13,000,000||
|-
|[[ File:amelia.gif ]]
|A Sagittarius named Amelia drinks a soda||7.79||7.7||4,000,000||Randall Munroe is a [http://blog.xkcd.com/2014/01/31/the-baby-name-wizard/ fan of The Baby Name Wizard] blog and its [http://www.babynamewizard.com Name Voyager] tool which shows that "[http://www.babynamewizard.com/baby-name/girl/amelia Amelia]" has recently exploded in popularity. 
This particular frequency is taken from:
* The number of persons called {{w|Amelia_(given_name)|Amelia}} ([http://howmanyofme.com/ est. 82,572 people in the U.S.])
* The number of persons born between November 22nd and December 22nd under the astrological sign of {{w|Sagittarius (astrology)|Sagittarius}} (~1/12th of the population, i.e. approximately 6881 Amelias in the U.S.)
* The frequency of soda (soft drinks) being drunk (216 liters per person per year in the U.S.[http://www.nationmaster.com/graph/foo_sof_dri_con-food-soft-drink-consumption]).
According to our figures, 6881 Amelias drink 1,44 million liters of soft drinks per year in the United States alone, which means that Randall's figures only account for American Amelias (drinking 356 cc or 12 fl. oz. of soda in each drink).
|-
|[[ File:dogbite.gif ]]
|A dog bites someone in the US||7.01||8.6||4,500,000||
|-
|[[ File:bike.gif ]]
|Someone steals a bicycle||24.93||2.4||1,265,000||
|-
|[[ File:eagle.gif ]]
|A bald eagle catches a fish||2.69||22||11,700,000||
|-
|[[ File:bottles.gif ]]
|50,000 plastic bottles are produced||1.27||2.36 million bottles||1.24 trillion||
|-
|[[ File:recycled.gif ]]
|50,000 plastic bottles are recycled||4.64||646,552 bottles||340 billion||27% of the plastic bottles manufactured get [[885: Recycling|recycled]]
|-
|[[ File:meteor.gif ]]
|A bright meteor is visible somewhere||1.15||52||N/I||
|-
|[[ File:oldfaithful.gif ]]
|Old Faithful erupts||5640 (94 minutes)||15 times per day||5,595||{{w|Old Faithful}} is a geyser in {{w|Yellowstone National Park}} in the US, that tends to erupt every 65 or 91 minutes. XKCD's period of 1h 34m falls between the [http://geysertimes.org/getGeyserInfo.php?geyserID=2 mean and median of recent Old Faithful eruptions] and corresponds to a [http://geysertimes.org/getSingleEruption.php?id=645135 February 16, 2014 eruption].
|-
|[[ File:shark.gif ]]
|A fishing boat catches a shark||0.83||72||38,000,000|| [[1326: Sharks]]
|-
|[[ File:us cancer.gif ]]
|Someone in the US is diagnosed with cancer||18.99||3.2||1,660,000|| [[881: Probability]]
|-
|[[ File:us cancer death.gif ]]
|Someone in the US dies from cancer||54.34||1.1||580,000|| [[881: Probability]]
|-
|[[ File:dog.gif ]]
|Someone adopts a dog from a shelter||15.6||3.8||2,000,000||
|-
|[[ File:cat.gif ]]
|Someone adopts a cat from a shelter||21.3||2.8||1,5000,000||
|-
|[[ File:wedding.gif ]]
|Someone gets married||0.75||80||42,000,000||
|-
|[[ File:domain.gif ]]
|Someone registers a domain||0.64||94||49,300,000 ||
|-
|[[ File:house.gif ]]
|Someone in the US buys a house||6.22||9.6||5,000,000||
|-
|[[ File:tattoo.gif ]]
|Someone in the US gets a tattoo||2.06||29||15,300,000||
|-
|[[ File:pulsar.gif ]]
|The star PSR J1748-2446AD rotates 1,000 times||1.4||43,000 rotations||N/I||{{w|PSR J1748-2446ad}} is the fastest spinning {{w|pulsar}} known.
|-
|[[ File:facebook.gif ]]
|Someone lies about their age to sign up for Facebook||4.32||14||600,000 per month||To sign up for Facebook, [https://www.facebook.com/help/210644045634222 the user must claim to be at least 13 years old]. This is a reflection of the U.S. {{w|Children's Online Privacy Protection Act}}.
|-
|[[ File:iphone.gif ]]
|Someone breaks an iPhone screen||0.93||65||34,000,000||
|-
|[[ File:littleleague.gif ]]
|A Little League player strikes out||1.23||49||N/I||{{w|Little League Baseball|Little League}} is a system of local youth baseball and softball competitions. A {{w|strikeout}} is a situation in baseball and softball.
|-
|[[ File:ndsex.gif ]]
|Someone has sex in North Dakota||1.38||43||22,900,000||Since {{w|North Dakota}} has 723,000 inhabitants (ranked the 48th state), and if we estimate the sexually active population as 80% (and if ''someone'' means ''a couple)'' this means that people in North Dakota have sex 79.1 times a year. It is estimated that 3.93% of the world population has sex on a given day;[http://geography.about.com/od/culturalgeography/a/geographyofsex.htm] Randall's rate for North Dakota is 17.3% which is not low.
|-
|[[ File:bieber.gif ]]
|Justin Bieber gains a follower on Twitter||4.73||13||556,000 per month|| [[802: Online Communities 2#Twitter Region|802: Online Communities 2]];  {{w|Justin Bieber}} is a Canadian pop music singer whose [https://twitter.com/justinbieber Twitter account] is extremely popular
|-
|[[ File:denverpizza.gif ]]
|Someone in Denver orders pizza||1.27||47||2,000,000|| [[778: Scheduling]]
|}

==Transcript==
:[Repetitive events are written in grey and arranged in a grid. Each statement pulses to black and then returns to grey at an interval characteristic of the named event.]

{| style="text-align:center;"
|- style="vertical-align: top; background-color:#eeeeee;"
|Heartbeat (0.86 sec)
|One birth (0.24 sec)
|One death (0.56 sec)
|Someone edits Wikipedia (0.67 sec)
|Someone buys a vibrator (2.99 sec)
|- style="vertical-align: top;"
|China builds a car (1.89 sec)
|Japan builds a car (4.01 sec)
|Germany builds a car (5.8 sec)
|The US builds a car (6.95 sec)
|Someone else builds a car (1.03 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|A European Union resident has their first kiss (5.53 sec)
|A US fire department puts out a fire (23 sec)
|Someone hits a hole-in-one (180 sec)
|My turn signal blinks (0.94 sec)
|The turn signal of the car in front of me blinks (0.9 sec)
|- style="vertical-align: top;"
|Earthquake (magnitude 1) (2.43 sec)
|Earthquake (magnitude 2) (24.26 sec)
|Earthquake (magnitude 3) (242.6 sec)
|Earthquake (magnitude 4) (2426 sec, 42 min)
|Member of the UK Parliament flushes a toilet (10.06 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|An airline flight takes off (0.93 sec)
|Someone buys ''To Kill a Mockingbird'' (42.05 sec)
|Someone's pet cat kills a mockingbird (1.82 sec)
|Someone in Phoenix buys new shoes (1.08 sec)
|Someone in Phoenix puts on a condom (2.05 sec)
|- style="vertical-align: top;"
|Someone locks their keys in their car (2.43 sec)
|A Sagittarius named Amelia drinks a soda (7.79 sec)
|A dog bites someone in the US (7.01 sec)
|Someone steals a bicycle (24.93 sec)
|A bald eagle catches a fish (2.69 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|50,000 plastic bottles are produced (1.27 sec)
|50,000 plastic bottles are recycled (4.64 sec)
|A bright meteor is visible somewhere (1.15 sec)
|Old Faithful erupts (5640 sec, 94 min)
|A fishing boat catches a shark (0.83 sec)
|- style="vertical-align: top;"
|Someone in the US is diagnosed with cancer (18.99 sec)
|Someone in the US dies from cancer (54.34 sec)
|Someone adopts a dog from a shelter (15.6 sec)
|Someone adopts a cat from a shelter (21.3 sec)
|Someone gets married (0.75 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|Someone registers a domain (0.64 sec)
|Someone in the US buys a house (6.22 sec)
|Someone in the US gets a tattoo (2.06 sec)
|The star ''PSR J1748-2446ad'' rotates 1,000 times (1.4 sec)
|Someone lies about their age to sign up for Facebook (4.32 sec)
|- style="vertical-align: top;"
|Someone breaks an iPhone screen (0.93 sec)
|A little league player strikes out (1.23 sec)
|Someone has sex in North Dakota (1.38 sec)
|Justin Bieber gains a follower on Twitter (4.73 sec)
|Someone in Denver orders a pizza (1.27 sec)
|}

{{comic discussion}}
[[Category:Dynamic comics]]
[[Category:Charts]]

1331: Frequency

2014-02-18T05:37:43Z

108.162.249.117: /* Explanation */

{{comic
| number = 1331
| date = February 17, 2014
| title = Frequency
| image = frequency.png
| titletext = This comic shows estimated average frequency. I wanted to include the pitch drop experiment, but it turns out the gif format has some issues with decade-long loops.
}}
This comic is animated. Click on the date above the comic to see the original version.
==Explanation==
{{incomplete|Incomplete.}}
This comic shows a number of common events, arranged in a grid. Each of the events flashes with their average frequency.

For example, statistically a child is born somewhere on the world approximately every 0.24 seconds, or four times per second. Therefore the tile "One birth" blinks about 4 times per second.

The table below lists all the events and their duration / frequency. Some events make reference to other comics.

The title text refers to the {{w|Pitch drop experiment}} which measures the flow of a piece of pitch over many years. At room temperature, tar pitch flows at a very slow rate, taking several years to form a single drop. The title text jokes that Randall tried to include a tile that flashes about once every {{w|decade|ten years}}, but the tiles are all {{w|Animated GIF|animated GIFs}} and the file format does not support animations that long.

{| class="wikitable sortable"
!Picture
!Text
!Period (seconds)
!Frequency (per minute)
!Frequency (per year, N/I = not interesting)
!Explanation and/or references to other comics.
|-
|[[File:heartbeat.gif]]
|Heartbeat||0.86||70||32,785,200||
|-
|[[File:birth.gif]]
|One birth||0.24||250||131,490,000|| [[746: Birth]]
|-
|[[File:death.gif]]
|One death||0.56||107||56,360,000||
|-
|[[File:wikipedia.gif]]
|Someone edits Wikipedia||0.67||90||47,100,000||{{w|Wikipedia}} is an online, freely editable encyclopedia.
|-
|[[File:vibrator.gif]]
|Someone buys a vibrator||2.99||20||10,550,000 || [[600: Android Boyfriend]]
|-
|[[ File:car china.gif ]]
|China builds a car||1.89||32||16,700,000||
|-
|[[ File:car japan.gif ]]
|Japan builds a car||4.01||15||7,870,000||
|-
|[[ File:car germany.gif ]]
|Germany builds a car||5.8||10||5,440,000||
|-
|[[ File:car us.gif ]]
|The US builds a car||6.95||8.6||4,540,000||
|-
|[[ File:car elsewhere.gif ]]
|Someone else builds a car||1.03||58||30,640,000||
|-
|[[ File:kiss.gif ]]
|A European Union resident has their first kiss||5.53||11||5,700,000||
|-
|[[ File:fire dept.gif ]]
|A US fire department puts out a fire||23||2.6||1,370,000||
|-
|[[ File:holeinone.gif ]]
|Someone hits a hole-in-one||180||20 times per hour||175,320||A {{w|hole in one}} is a feat in {{w|golf}} in which the player hits the ball directly from the tee into the cup with one shot.
|-
|[[ File:turnsignal1.gif ]]
|My turn signal blinks||0.94||64||N/I||See below
|-
|[[ File:turnsignal2.gif ]]
|The turn signal of the car in front of me blinks||0.9||67||N/I||This, together with the previous item, forms a reference to [[165: Turn Signals]].
|-
|[[ File:earthquake1.gif ]]
|Earthquake (magnitude 1)||2.43||25||13,000,000|| [[711: Seismograph]]
|-
|[[ File:earthquake2.gif ]]
|Earthquake (magnitude 2)||24.26||2.5||1,300,000|| Review [http://earthquake.usgs.gov/earthquakes/map/#%7B%22feed%22%3A%221day_all%22%2C%22search%22%3Anull%2C%22sort%22%3A%22largest%22%2C%22basemap%22%3A%22grayscale%22%2C%22autoUpdate%22%3Atrue%2C%22restrictListToMap%22%3Atrue%2C%22timeZone%22%3A%22local%22%2C%22mapposition%22%3A%5B%5B-84.47406458459159%2C-25.6640625%5D%2C%5B84.4740645845916%2C425.390625%5D%5D%2C%22overlays%22%3A%7B%22plates%22%3Atrue%7D%2C%22viewModes%22%3A%7B%22map%22%3Atrue%2C%22list%22%3Atrue%2C%22settings%22%3Atrue%2C%22help%22%3Afalse%7D%7D USGS's Quake Map] for verification.
|-
|[[ File:earthquake3.gif ]]
|Earthquake (magnitude 3)||242.6||15 times per hour||130,000|| [[1037: Umwelt#Earthquake-Blizzard|1037: Umwelt]]
|-
|[[ File:earthquake4.gif ]]
|Earthquake (magnitude 4)||2426||1.5 times per hour||13,000|| [[723: Seismic Waves]]; below this magnitude earthquakes pass by largely unnoticed by Tweeters.[http://earthquake.usgs.gov/learn/topics/mag_vs_int.php]
|-
|[[ File:parliament toilet.gif ]]
|A member of the UK parliament flushes a toilet||10.06||6||3,140,000||Note that probably during the daytime in Britain such a toilet is flushed 8.5 times per minute, while at night it is flushed only 1 time per minute.
|-
|[[ File:flight.gif ]]
|An airline flight takes off||0.93||65||34,000,000||
|-
|[[ File:book mockingbird.gif ]]
|Someone buys ''To Kill a Mockingbird''||42.05||1.4||750,000||“{{w|To Kill a Mockingbird}}” is a famous novel by {{w|Harper Lee}}.
|-
|[[ File:cat mockingbird.gif ]]
|Someone's pet cat kills a mockingbird||1.82||33||17,340,000||Whereas the previous item references the well-known book “To Kill a Mockingbird”, this one talks about {{w|Mockingbird|mockingbirds}} being literally killed (in this case, by cats). There are 45 million mockingbirds in the world;[http://animaldiversity.ummz.umich.edu/accounts/Mimus_polyglottos/] this means that according to Randall, cats kill 39% of mockingbirds in one year, i.e. in 2.5 years they are able to kill all mockingbirds (excluding the ones that are born in the meantime).
|-
|[[ File:phoenixshoes.gif ]]
|Someone in Phoenix buys new shoes||1.08||56||29,200,000||Since {{w|Phoenix metropolitan area|metro Phoenix}} has 4,200,000 inhabitants, according to Randall people in Phoenix buy 7 pairs of shoes per capita per year.
|-
|[[ File:phoenix.gif ]]
|Someone in Phoenix puts on a condom||2.05||29||15,390,000||
|-
|[[ File:keys.gif ]]
|Someone locks their keys in their car||2.43||25||13,000,000||
|-
|[[ File:amelia.gif ]]
|A Sagittarius named Amelia drinks a soda||7.79||7.7||4,000,000||Randall Munroe is a [http://blog.xkcd.com/2014/01/31/the-baby-name-wizard/ fan of The Baby Name Wizard] blog and its [http://www.babynamewizard.com Name Voyager] tool which shows that "[http://www.babynamewizard.com/baby-name/girl/amelia Amelia]" has recently exploded in popularity. 
This particular frequency is taken from:
* The number of persons called {{w|Amelia_(given_name)|Amelia}} ([http://howmanyofme.com/ est. 82,572 people in the U.S.])
* The number of persons born between November 22nd and December 22nd under the astrological sign of {{w|Sagittarius (astrology)|Sagittarius}} (~1/12th of the population, i.e. approximately 6881 Amelias in the U.S.)
* The frequency of soda (soft drinks) being drunk (216 liters per person per year in the U.S.[http://www.nationmaster.com/graph/foo_sof_dri_con-food-soft-drink-consumption]).
According to our figures, 6881 Amelias drink 1,44 million liters of soft drinks per year in the United States alone, which means that Randall's figures only account for American Amelias (drinking 356 cc or 12 fl. oz. of soda in each drink).
|-
|[[ File:dogbite.gif ]]
|A dog bites someone in the US||7.01||8.6||4,500,000||
|-
|[[ File:bike.gif ]]
|Someone steals a bicycle||24.93||2.4||1,265,000||
|-
|[[ File:eagle.gif ]]
|A bald eagle catches a fish||2.69||22||11,700,000||
|-
|[[ File:bottles.gif ]]
|50,000 plastic bottles are produced||1.27||2.36 million bottles||1.24 trillion||
|-
|[[ File:recycled.gif ]]
|50,000 plastic bottles are recycled||4.64||646,552 bottles||340 billion||27% of the plastic bottles manufactured get [[885: Recycling|recycled]]
|-
|[[ File:meteor.gif ]]
|A bright meteor is visible somewhere||1.15||52||N/I||
|-
|[[ File:oldfaithful.gif ]]
|Old Faithful erupts||5640 (94 minutes)||15 times per day||5,595||{{w|Old Faithful}} is a geyser in {{w|Yellowstone National Park}} in the US, that tends to erupt every 65 or 91 minutes. XKCD's period of 1h 34m falls between the [http://geysertimes.org/getGeyserInfo.php?geyserID=2 mean and median of recent Old Faithful eruptions] and corresponds to a [http://geysertimes.org/getSingleEruption.php?id=645135 February 16, 2014 eruption].
|-
|[[ File:shark.gif ]]
|A fishing boat catches a shark||0.83||72||38,000,000|| [[1326: Sharks]]
|-
|[[ File:us cancer.gif ]]
|Someone in the US is diagnosed with cancer||18.99||3.2||1,660,000|| [[881: Probability]]
|-
|[[ File:us cancer death.gif ]]
|Someone in the US dies from cancer||54.34||1.1||580,000|| [[881: Probability]]
|-
|[[ File:dog.gif ]]
|Someone adopts a dog from a shelter||15.6||3.8||2,000,000||
|-
|[[ File:cat.gif ]]
|Someone adopts a cat from a shelter||21.3||2.8||1,5000,000||
|-
|[[ File:wedding.gif ]]
|Someone gets married||0.75||80||42,000,000||
|-
|[[ File:domain.gif ]]
|Someone registers a domain||0.64||94||49,300,000 ||
|-
|[[ File:house.gif ]]
|Someone in the US buys a house||6.22||9.6||5,000,000||
|-
|[[ File:tattoo.gif ]]
|Someone in the US gets a tattoo||2.06||29||15,300,000||
|-
|[[ File:pulsar.gif ]]
|The star PSR J1748-2446AD rotates 1,000 times||1.4||43,000 rotations||N/I||{{w|PSR J1748-2446ad}} is the fastest spinning {{w|pulsar}} known.
|-
|[[ File:facebook.gif ]]
|Someone lies about their age to sign up for Facebook||4.32||14||600,000 per month||To sign up for Facebook, [https://www.facebook.com/help/210644045634222 the user must claim to be at least 13 years old]. This is a reflection of the U.S. {{w|Children's Online Privacy Protection Act}}.
|-
|[[ File:iphone.gif ]]
|Someone breaks an iPhone screen||0.93||65||34,000,000||
|-
|[[ File:littleleague.gif ]]
|A Little League player strikes out||1.23||49||N/I||{{w|Little League Baseball|Little League}} is a system of local youth baseball and softball competitions. A {{w|strikeout}} is a situation in baseball and softball.
|-
|[[ File:ndsex.gif ]]
|Someone has sex in North Dakota||1.38||43||22,900,000||Since {{w|North Dakota}} has 723,000 inhabitants (ranked the 48th state), and if we estimate the sexually active population as 80% (and if ''someone'' means ''a couple)'' this means that people in North Dakota have sex 79.1 times a year. It is estimated that 3.93% of the world population has sex on a given day;[http://geography.about.com/od/culturalgeography/a/geographyofsex.htm] Randall's rate for North Dakota is 17.3% which is not low.
|-
|[[ File:bieber.gif ]]
|Justin Bieber gains a follower on Twitter||4.73||13||556,000 per month|| [[802: Online Communities 2#Twitter Region|802: Online Communities 2]];  {{w|Justin Bieber}} is a Canadian pop music singer whose [https://twitter.com/justinbieber Twitter account] is extremely popular
|-
|[[ File:denverpizza.gif ]]
|Someone in Denver orders pizza||1.27||47||2,000,000|| [[778: Scheduling]]
|}

==Transcript==
:[Repetitive events are written in grey and arranged in a grid. Each statement pulses to black and then returns to grey at an interval characteristic of the named event.]

{| style="text-align:center;"
|- style="vertical-align: top; background-color:#eeeeee;"
|Heartbeat (0.86 sec)
|One birth (0.24 sec)
|One death (0.56 sec)
|Someone edits Wikipedia (0.67 sec)
|Someone buys a vibrator (2.99 sec)
|- style="vertical-align: top;"
|China builds a car (1.89 sec)
|Japan builds a car (4.01 sec)
|Germany builds a car (5.8 sec)
|The US builds a car (6.95 sec)
|Someone else builds a car (1.03 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|A European Union resident has their first kiss (5.53 sec)
|A US fire department puts out a fire (23 sec)
|Someone hits a hole-in-one (180 sec)
|My turn signal blinks (0.94 sec)
|The turn signal of the car in front of me blinks (0.9 sec)
|- style="vertical-align: top;"
|Earthquake (magnitude 1) (2.43 sec)
|Earthquake (magnitude 2) (24.26 sec)
|Earthquake (magnitude 3) (242.6 sec)
|Earthquake (magnitude 4) (2426 sec, 42 min)
|Member of the UK Parliament flushes a toilet (10.06 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|An airline flight takes off (0.93 sec)
|Someone buys ''To Kill a Mockingbird'' (42.05 sec)
|Someone's pet cat kills a mockingbird (1.82 sec)
|Someone in Phoenix buys new shoes (1.08 sec)
|Someone in Phoenix puts on a condom (2.05 sec)
|- style="vertical-align: top;"
|Someone locks their keys in their car (2.43 sec)
|A Sagittarius named Amelia drinks a soda (7.79 sec)
|A dog bites someone in the US (7.01 sec)
|Someone steals a bicycle (24.93 sec)
|A bald eagle catches a fish (2.69 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|50,000 plastic bottles are produced (1.27 sec)
|50,000 plastic bottles are recycled (4.64 sec)
|A bright meteor is visible somewhere (1.15 sec)
|Old Faithful erupts (5640 sec, 94 min)
|A fishing boat catches a shark (0.83 sec)
|- style="vertical-align: top;"
|Someone in the US is diagnosed with cancer (18.99 sec)
|Someone in the US dies from cancer (54.34 sec)
|Someone adopts a dog from a shelter (15.6 sec)
|Someone adopts a cat from a shelter (21.3 sec)
|Someone gets married (0.75 sec)
|- style="vertical-align: top; background-color:#eeeeee;"
|Someone registers a domain (0.64 sec)
|Someone in the US buys a house (6.22 sec)
|Someone in the US gets a tattoo (2.06 sec)
|The star ''PSR J1748-2446ad'' rotates 1,000 times (1.4 sec)
|Someone lies about their age to sign up for Facebook (4.32 sec)
|- style="vertical-align: top;"
|Someone breaks an iPhone screen (0.93 sec)
|A little league player strikes out (1.23 sec)
|Someone has sex in North Dakota (1.38 sec)
|Justin Bieber gains a follower on Twitter (4.73 sec)
|Someone in Denver orders a pizza (1.27 sec)
|}

{{comic discussion}}
[[Category:Dynamic comics]]
[[Category:Charts]]

Talk:1321: Cold

2014-01-24T13:21:25Z

108.162.249.117:

I really hate when articles on science get a POV tag. Science isn't politics (hint: evolution and gravity aren't POV either). Related to the comic, I just had a similar rant on Facebook in the last week or two where I linked to [http://www.skepticalscience.com/print.php?r=54 this article] when someone said it was too cold for Global Warming. [[Special:Contributions/108.162.237.64|108.162.237.64]] 12:24, 24 January 2014 (UTC)

I really hate it when people think the global warming scam is science, when it really is nothing more than politics masquerading as science. The IPCC has been proven to be a bunch of liars, and really there's nothing left but a bunch of whining left-wing lunatics who are desperately clinging to their hope of continuing to use this lie to raise energy prices/taxes. [[Special:Contributions/108.162.219.17|108.162.219.17]] 12:55, 24 January 2014 (UTC)
:Well you're wrong, and apparently delusionally paranoid about what the political left wants, but the bigger question is why is this in a wiki discussion page? [[Special:Contributions/108.162.249.117|108.162.249.117]] 13:21, 24 January 2014 (UTC)

Talk:313: Insomnia

2014-01-13T11:48:34Z

108.162.249.117:

We know it must not be a 24-hour clock. On that setting, 4:31 would be in the afternoon, not at night.[[Special:Contributions/108.162.219.202|108.162.219.202]] 15:11, 22 December 2013 (UTC)

:I cannot tell if you are misguided, trolling or just hallucinating in the style of this comic. So - well done! [[Special:Contributions/108.162.219.223|108.162.219.223]] 18:18, 23 December 2013 (UTC)

Quite the opposite. 13:00 is 1 in the afternoon, and 4:31 would be 4:31 at night. [[Special:Contributions/199.27.128.144|199.27.128.144]] 04:48, 9 January 2014 (UTC)

I know it's quite a long shot, but polish writer Bruno Shulz wrote a novel "Cinamon Shops", which surprisingly have a style of insomnia-crazy visions. More : http://en.m.wikipedia.org/wiki/The_Street_of_Crocodiles
[[Special:Contributions/108.162.249.117|108.162.249.117]] 11:48, 13 January 2014 (UTC)

Talk:477: Typewriter

2013-12-30T01:44:12Z

108.162.249.117: Pedantic notation

The spaces are because he's trying to alt-tab. [[Special:Contributions/98.201.111.246|98.201.111.246]] 22:21, 31 January 2013 (UTC)mr
:You are absolutely correct, and the is much more missing. So I did tag this as incomplete.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 18:31, 19 September 2013 (UTC)
::Ctrl+Tab, next tab in tab bar. Alt+Tab, next top level window on desktop. If he uses a browser based email program it could be either [[Special:Contributions/108.162.249.117|108.162.249.117]] 01:44, 30 December 2013 (UTC)

Talk:1301: File Extensions

2013-12-10T17:43:18Z

108.162.249.117: /* missing suffices */ new section

The title text reference of "hand-aligned data" may refer to ASCII art. [[Special:Contributions/108.162.215.28|108.162.215.28]] 05:36, 9 December 2013 (UTC) Alan K.

I think it's also a notable point, that the better rated document formats are more data centric while the low rated formats mix text informations with design elements and finally become pure graphic formats, which often is an indication, that the author didn't use the accurate file type for (mostly) pure text informations.
Something I don't understand is the gap between jpg and jpeg. The first suffix is AFAIK only an abbreviation used by older DOS/MS Systems to fullfill the 8.3 limitation for filenames. The note about hand alignment might concern the fact, that hand alignment is more time expensive which might increase the amount of the the author spend in overthink the content before layouting. Also often automated layouting as supported by many modern writing application might lead to unexpected and sometimes wrong results, because the automatism has no semantical knowledge about the authors intention, which might lead to post processed errors
Sorry for my bad english, I'm not a natural writer
[[Special:Contributions/108.162.231.239|108.162.231.239]] 05:45, 9 December 2013 (UTC)
:"hand-aligned data" seems to me like (manually) space-indented paragraphs, perhaps even manual padding to achieve the desired justification (centering and right-and-left-margin-hugging). And of course neatly lining up an 'embedded table', perhaps originally extracted from a .csv output. Although a number of plain-text editors (in the days of CGA and pure terminal/fixedspace fonts) or text formatters and wrappers (e.g. Lynx, man-page creaters, etc) ''would'' do things like this for you. And still do. At least insofar as the justification and margining is concerned. [[Special:Contributions/141.101.99.229|141.101.99.229]] 08:35, 9 December 2013 (UTC)
If anyone has taken the time to hand align a text file (as in a README, or other info file), they want it to look attractive for people to read. Odd are you're not going to take the time to "hand pretty" the document just to be malicious. Back in the BBS days there were a large number of "online" groups who had "signature" text files which were (very probably) hand aligned, and made extensive use of extended ASCII codes to generate basic graphics. (Granted there were programs to help auto-generate "ascii art".) If you've ever seen these files you'd know. [[http://www.thuglife.org/tlv5/aabout.shtml Example 1]] - [[http://textfiles.com/piracy/NFO/ Example 2]] [[User:Jarod997|Jarod997]] ([[User talk:Jarod997|talk]]) 14:14, 9 December 2013 (UTC)

I find it interesting that .jpg and .jpeg are at different levels. Aren't those the same thing? --[[User:Mralext20|Mralext20]] ([[User talk:Mralext20|talk]]) 05:48, 9 December 2013 (UTC)
Perhaps the .gif could contain suddenly unexpected scary/surprising frames? [[Special:Contributions/108.162.208.172|108.162.208.172]] 14:54, 9 December 2013 (UTC)

:That JPG/JPEG thing indeed seems strange. The more important distinction is between JPEGs that are photographs (fine) and those that are not (stupid). Also, pre-PNG, non-photograph GIFs could be just fine. And with all the accounting scandals we've seen, why would those spreadsheet formats get any credibility? -- [[User:Dfeuer|Dfeuer]] ([[User talk:Dfeuer|talk]]) 06:06, 9 December 2013 (UTC)
::Alongside .jpeg ('full' extension format) and .jpg (MS '8.3'-compatible extension format), I'd have expected .jpe (often full extension historically truncated on an 8.3 system), I must be honest. (And interesting that .docx doesn't co-inhabit the .doc line... or be somewhere else.) And the disparity betwixt the two versions of JPEG extension ''may'' relate to the tendency for a higher artefact-intensity of images back in the early days (when a better option than GIFs for... certain pictures... e.g. on Usenet between *nix workstations with vastly restricted bandwidths and storage capacities) compared to today's users (cameras that regularly store 10+MP pictures in low-loss JFIF files, and/or in Raw format!). But that may be a spurious or off-track reasoning on my part. [[Special:Contributions/141.101.99.229|141.101.99.229]] 08:27, 9 December 2013 (UTC)

I measured the bars in photoshop to +/- 2pixels. If we scale .tex to a value of 100 like the transcript says, these are the values I get for the bar lengths (rounded to one decimal place)
.tex 100
.pdf 89.4
.csv 84.9
.txt 66.5
.svg 64.8
.xls 48.6
.doc 21.2
.png 15.1
.ppt 14.5
.jpg 3.4
.jpeg -8.4
.gif -35.8

Dunno if it is helpful - or even trusted given I'm a first time commenter - but there it is. Closer values than just estimating, though the eyeballed estimates aren't bad. Not going to adjust the actual transcript because I feel that's overstepping my bounds. {{unsigned ip|108.162.216.56}}
:Not at all, wikis are free to edit for a reason. If we didn't want new users to be editing pages, we could have turned that off long ago. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 07:55, 9 December 2013 (UTC)

As the information that is provided by the graph comes as png, we should probably not trust her. --[[Special:Contributions/141.101.92.120|141.101.92.120]] 09:03, 9 December 2013 (UTC)
: Ha, +1 Like :-) [[User:Spongebog|Spongebog]] ([[User talk:Spongebog|talk]])

I never saw image of cute cats lying to me ... I mean, the gif is STILL the preferred format for animation, mostly because it's the only one supported. Animation formats based on PNG didn't catched up, hard to say why ... on the other hand, gif animation apparently have huge number of weird extensions, judging by the number of animated images I found which don't render properly in anything EXCEPT the browser. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 10:27, 9 December 2013 (UTC)
:The cute cat may not be lying, but since the format is used in other context -- like banner ads, then the average GIF may well be lying, also I believe there have been many security issues with GIFs and JPGs as they have been used as an attack vector for internet-bad-guys to take over your computer -- so while security issues is not specifically the topic for todays strip, then that may be worth noticing as well [[User:Spongebog|Spongebog]] ([[User talk:Spongebog|talk]])
:It is also possible to create animations with svg which is (for good reason, I like that format) ranked higher. Especially for scientific purposes it can be handy. Unfortunately is the MediaWiki software unable to show them. For example in the previous comic is an animation of the Galilean moons shown. That is an gif but someone also uploaded an [[Wikipedia:commons:File:Galilean_moon_Laplace_resonance_animation_(en_-_monochrome_-_350x217).svg|svg animation]] and I would say it does look smoother than the gif. [[Special:Contributions/108.162.231.215|108.162.231.215]] 14:40, 9 December 2013 (UTC)
:The Grumpy Cat is not grumpy in real life - so cat pictures DO lie! [[User:Schmammel|Schmammel]] ([[User talk:Schmammel|talk]]) 15:40, 9 December 2013 (UTC)
What is the scale of the chart? Does 'top' = most trusted'? Never assume anything with xkcd. [[User:David.windsor|David.windsor]] ([[User talk:David.windsor|talk]]) 18:29, 9 December 2013 (UTC)

Of course Randall does not really think that the file extension determines trustworthiness; the graph is tongue-in-cheek. Information can be trustworthy or untrustworthy no matter the format it's given in. [[Special:Contributions/108.162.216.221|108.162.216.221]] 18:50, 9 December 2013 (UTC)
:Yes, I believe the explanation somewhat misinterprets Randall's intentions, especially when it comes to the image formats. I interpret it not as a question of loss of information due to compression but instead a more general impression of when and by whom these formats are used and, as a consequence, the trustworthiness of the information conveyed through these formats. That would explain the jpg/jpeg distinction as (in my experience though I can't provide data that support it) .jpg is nowadays the preferred compressed format in professional contexts and .jpeg looks slightly childish. [[Special:Contributions/141.101.80.117|141.101.80.117]] 23:59, 9 December 2013 (UTC)

Reading more into the linked info about viruses embedded in JPEGs, it appears that the only way to receive a virus from a JPEG file would be to have ''already'' received another virus from a standard executable file, where such a virus causes the computer to execute code in a JPEG file rather than simply display it as it normally would. Since such a possibility is independent of the file type (the first virus might just as well have enabled code execution in DOC files, for instance), I've removed that bit of info. [[User:Zowayix|Zowayix]] ([[User talk:Zowayix|talk]]) 03:44, 10 December 2013 (UTC)

Can anyone explain the banner near the top of xkcd.com today, 10 Dec 2013? It reads,
"Dear Wikipedia readers: if everyone reading this _showed up at my house,_ (yellow highlight)I would be like "what?"

== missing suffices ==

Obviously .html & .htm are so far to the left, they're off the chart. :-)
[[Special:Contributions/108.162.249.117|108.162.249.117]] 17:43, 10 December 2013 (UTC)