explain xkcd - User contributions [en]

Talk:1719: Superzoom

2016-08-12T16:12:24Z

108.162.215.116:

Camera guy is an asshole. -- [[User:108.162.216.76|108.162.216.76]] ([[User talk:108.162.216.76|talk]]) 14:53, 12 August 2016‎ ''(please sign your comments with <nowiki>~~</nowiki>~~)''

Didn't realise donkeys could fit in a guy!

Anyhow, does anyone know if those cameras are really that good?

Alternatively, its possible he's borrowing this camera from beret guy. Too bad he didn't check to see if it dispenses soup; now we'll never know.
[[Special:Contributions/172.68.35.81|172.68.35.81]] 15:08, 12 August 2016 (UTC)

I don't think the comic mentioned anything about the price of the camera. [[Special:Contributions/108.162.215.116|108.162.215.116]] 16:12, 12 August 2016 (UTC)

1693: Oxidation

2016-06-14T08:06:01Z

108.162.215.116:

{{comic
| number = 1693
| date = June 13, 2016
| title = Oxidation
| image = oxidation.png
| titletext = Calm down--there were lots of arthropods living on your skin already. These ones are just bigger.
}}

==Explanation==
In this comic [[Ponytail]] has set [[Megan]]'s car on fire, possibly by crashing it.

{{w|Oxidation}} refers to a whole class of chemical reactions. Any chemical reaction that involves the loss of electrons is called "oxidation" (since a lot of these involve oxygen).One oxidation reaction is {{w|rusting}}, the reaction of iron atoms in the steel of the car with oxygen and moisture to produce iron oxide hydrate. Rusting is extremely difficult to prevent, and all cars are rusting slowly.

Another oxidation reaction is {{w|combustion}}, an exothermic reaction, such as the violently rapid reaction of flammable parts of the car with oxygen to produce a whole load of nasty gases and particulates, as well as a lot of heat. {{w|Vehicle fire|Vehicle fires}} can burn very quickly and destroy a vehicle within minutes.

From the most detached viewpoint, these are both oxidation reactions (although they occur in different places: rusting normally happens to the car chassis while fires are usually isolated to the engine) and Ponytail argues that as all cars oxidize, the fire that she has caused has only accelerated the inevitable destruction of the vehicle.[citation needed]

The comic by extension mocks arguments that ignore or trivialise quantitative differences. Such arguments are commonly employed to attack climate change: the Earth has been warming since the glacial period ten thousand years ago, it's just happening faster since the introduction of large quantities of greenhouse gases.

In the title text the small {{w|arthropods}} (invertebrates that have jointed bodies and exoskeletons) are referencing microscopic {{w|mites}} – tiny creatures that can live on the human body without normally causing any harm (you probably have {{w|eyelash mite}}s, for instance).

Presumably as a form of revenge, Megan has caused Ponytail to become covered in much larger arthropods - most probably {{w|spiders}}, judging by [[Randall|Randall's]] [[:Category:Spiders|fixation with them]], but it could be any combination of these often feared animal: spiders, {{w|scorpions}}, {{w|insects}}, {{w|crabs}}, {{w|centipedes}}, {{w|millipedes}} etc.

Megan's car also caught fire in [[1014: Car Problems]].

==Transcript==
:[Ponytail is holding a finger up in front of Megan while gray smoke and heat waves pours in to the frame from off-panel left.]
:Ponytail: In my defense, your car has been oxidizing since you got it.
:Ponytail: It's just happening a lot faster now.

{{comic discussion}}

[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Megan]]
[[Category:Chemistry]]
[[Category:Animals]]
[[Category:Spiders]]

1393: Timeghost

2014-07-31T18:28:22Z

108.162.215.116: Removed typo

{{comic
| number = 1393
| date = July 11, 2014
| title = Timeghost
| image = timeghost.png
| titletext = 'Hello, Ghostbusters?' 'ooOOoooo people born years after that movie came out are having a second chiiiild right now ooOoooOoo'
}}

==Explanation==
[[Megan]] has been haunted by a ''Timeghost'' for some time. It is obviously not the first time the ghost arrives to let Megan know that "...ooOOOOOOOOooo... Tiiiime is passiiiing!" The ghost is dedicated to making people feel old by having them think about the passage of time. It is shown to reference time periods related to well-known people and events, such as famous actors and the release of movies and TV shows. Megan is just annoyed that it is back and wishes it to go away.

But then when [[Cueball]] ask "How long has it been doing this?" the ghost suddenly predicts that Megan and Cueball will die in a shorter amount of time than the time that has passed since the ghost began its hauntings. This disturbs Megan who stops her complaining and asks "'''What!?'''" This is not the first time she has been haunted by the ghost but it has probably not been that long, so this is a very scary thought to her (and Cueball).

We do, however, not know how long the ghost has been haunting Megan. Also the "staaaaart of my haunting" may refer to the first time the ghost haunted anyone, not just Megan. This could be a long time ago and thus be true for anyone it meets today. Or it could mean since the start of this particular manifestation, meaning their deaths are imminent! It is also possible Timeghost is being deliberately ambiguous in an effort to frighten them even more. This is of course only scary if you believe the ghost can predict the future, which is not what it has been doing so far. (There is no example in the comic where it makes a prediction that we know is accurate - only comparing time spans we can look up - see below).

But one thing about the prediction is true - they will eventually '''die'''. And this is the scary part about realizing how old you are and that you are quickly getting older: You will die soon.

The comic seems to be using "factoid" to mean a small fact. "{{w|Factoid}}" can also mean a "questionable or spurious statement presented as a fact", but this does not seem to be intended usage here. In this instance, some of the factoids are easily verifiable, while others are reasonable assumptions based on the number of years passed since the individual events. Several sources advocate the use of the word "factlet" to express a brief interesting fact, while using the word "factoid" for unverifiable or untrue statements passed as fact.

While ''factoids'' tend only to have mostly only entertainment value, the last ''fact'' from the ghost is a prediction of the future (Megan and Cueball's death) which is actually of some practical value if it can be trusted.

"Timeghost" might be a literal interpretation of {{w|Zeitgeist}}, which is a German term for "spirit of time" and refers to the school of thought that influences or dominates the art and culture of a time period. All the events and people mentioned in this comic may be considered influences on present day art and culture.

In the title text Megan calls {{w|Ghostbusters}} (from the 1984 movie) to help get rid of the Timeghost. This of course makes the ghost state that "people born years after that movie came out are having a second chiiiild right now" making her feel old once more.

[[Randall]] has covered making people feel old several times in [[647: Scary]], [[891: Movie Ages]] and [[973: MTV Generation]]. Also see the blag post [http://blog.xkcd.com/2012/09/29/odd-temporal-milestones/ Odd Temporal Milestones]. This is, however, so far the only one that makes a prediction of anyone's death. A similar ghost with a much different agenda was seen in [[1108: Cautionary Ghost]]. Similarly annoying fact(oids) were given in [[1272: Shadowfacts]].

'''Timeline'''
{| class="wikitable"
!Year||Event
|-
|1955-1975||{{w|Vietnam War}}
|-
|colspan="2"|19 years
|-
|1994||{{w|Forrest Gump (film)|Forrest Gump}}
|-
|colspan="2"|20 years
|-
|2014||Year of this comic
|-
|colspan="2"|
|-
|1964||{{w|Keanu Reeves}} (Actor) born
|-
|colspan="2"|2 years
|-
|1966||Today's new grandparents born (Average age: 48 in the US)
|-
|colspan="2"|48 years
|-
|2014||Year of this comic
|-
|colspan="2"|
|-
|1990||[http://www.cdc.gov/nchs/data/nhsr/nhsr051.pdf Today's new parents born] (Average age: 24 in the US)
|-
|colspan="2"|3 years
|-
|1993-1994||{{w|The Simpsons}} Season 5
|-
|colspan="2"|2 years (from '93 to '95)
|-
|1994-1995||{{w|The Simpsons}} Season 6
|-
|colspan="2"|4 years
|-
|1999||{{w|Eminem}} (Rapper) got big (second album)
|-
|colspan="2"|15 years
|-
|2014||Year of this comic
|-
|colspan="2"|
|-
|1984||{{w|Ghostbusters}}
|-
|colspan="2"|3 years
|-
|1987||[http://www.cdc.gov/nchs/data/nhsr/nhsr051.pdf Today's people just having a second child born] (Average age at first childbirth (24) + average gap between first two births (3))
|-
|colspan="2"|27 years
|-
|2014||Year of this comic
|}

==Transcript==
:[Cueball and Megan are approached by a floating ghost]
:Timeghost: ''...ooOOOOOOOOooo... Tiiiime is passiiiing!''
:Megan: Ugh. Timeghost.
:Cueball: Huh?
:Megan: Here come the factoids.

:[Timeghost floats around]
:Timeghost: ''Forrest Gump'' came out closer to the Vietnam War than to the present daaay.
:Megan: Go ''away!''
:Timeghost: The average new grand-parents are younger than Keanu Reeeeves!
:Cueball: That can't be right...

:[Megan clutches her head, possibly attempting to cover her ears]
:Timeghost: ''Today's new parents were ten when Eminem got big. Daaaaaad muuuuusic. They remember Simpsons season 5 or 6 at the '''earliest'''''.
:Megan: Argh!
:Cueball: How long has it been ''doing'' this?

:[Megan and Cueball looks up at the Timeghost as it delivers its most scary message]
:Timeghost: ''The staaaaart of my haunting is now further away than your deaaaths!''
:Megan: Will you sto- -'''''WHAT!?'''''
:Timeghost: ''ooOOOOOOOoo''
{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]