explain xkcd - User contributions [en]

1402: Harpoons

2014-08-02T17:37:49Z

108.162.222.77: /* Explanation */

{{comic
| number = 1402
| date = August 1, 2014
| title = Harpoons
| image = harpoons.png
| titletext = To motivate it to fire its harpoons hard enough, Rosetta's Philae lander has been programmed to believe it is trying to kill the comet.
}}

==Explanation==
{{incomplete|Needs more work, especially the top section, too much speculation in the explanation which should belong in the comment section}}
Continuing a recurring theme (as seen in comics [[111: Firefox and Witchcraft - The Connection?|111]] and [[231: Cat Proximity|231]]), two unrelated but interesting objects have been juxtaposed graphically with humorous results. In this case, it's the fact that old-timey, man-made {{w|harpoon}}s (a cool word) have been placed among the equipment for a space flight (a cool concept). According to Randall, this has happened twice.

The latter peak on this graph refers to the {{w|Rosetta (spacecraft)|Rosetta}} unmanned spacecraft. As part of its mission, it's carrying a lander (called {{w|Philae (spacecraft)|Philae}}), which has two tethers to anchor itself to the comet {{w|67P/Churyumov–Gerasimenko}}. Rosetta was launched in March 2004 (as shown in the graph) and is scheduled to encounter the comet in August 2014, making this a timely comic.

The first peak is probably a joke. Officially, {{w|Apollo 12}} carried neither harpoons nor rum. However, as a former NASA contractor, Randall may know more about space shenanigans than the general public, and may be implying (perhaps jokingly) that a bottle of the [http://www.harpoon-rum.eu/1.html Harpoon] brand of {{w|Rum#Regional variations|Jamaican rum}} made it aboard. More likely it's an homage to ''Calvin and Hobbes''' infamous, but never explained, "[http://calvinandhobbes.wikia.com/wiki/Noodle_Incident noodle incident]".

The title text compares the Philae lander's method of deploying its tethers to whaling, in which sailors would throw harpoons at a whale with the intent of killing the whale. It was important to throw hard so the harpoon would stick in the whale so it could not get away and would tow the whaling boat until it got tired and could be killed. It is implied that the spacecraft is sentient and needs a motivation to fire the harpoons hard enough to stay anchored to the comet. It has thus been programmed to believe that its mission is to kill the comet. This is a joke, as Rosetta, just like the [[695: Spirit|Spirit]] rover, is not sentient {{Citation needed}}.

==Transcript==
:'''Number of harpoons in space'''
:by year
:[A chart with a red graph is drawn below]
:[The y-axis]
:0 1 2 3
:[The x-axis]
:1950 1960 1970 1980 1990 2000 2010 2020
:[The graph is at zero until a sharp peak to 1 in 1970. The peak is labeled]
:Apollo 12 rum incident
:[The graph then stays at 0 until 2004. Then it rises to 2 and stays there until today, continuing as a dotted line after 2014. The rise is labeled]
:Rosetta comet mission launched carrying lander with harpoon tethers

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

Talk:1402: Harpoons

2014-08-02T12:42:21Z

108.162.222.77:

I took the sentient space craft joke to be a reference to the movie "Dark Star".{{unsigned ip|199.27.128.123}}

Harpoon is a brand of rum. Did a bottle make it into space? [[Special:Contributions/108.162.219.196|108.162.219.196]] 12:55, 1 August 2014 (UTC)

: I tried to find who makes it but wasn't able to find a definitive source. I added http://www.harpoon-rum.eu/ for now but it would be nice to have the link to the canonical source. Any pointers? --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 17:24, 1 August 2014 (UTC)

: It's only headcannon. (ref to xkcd #1401) A headcannon which fires a harpoon. [[Special:Contributions/108.162.216.80|108.162.216.80]] 17:52, 1 August 2014 (UTC)

Did this comic upload quite late in the day for anyone else? Is anyone else experiencing or did anyone else experience that "Latest Comic" is still going to 1401 as ix XKCD.com and XKCD.com/# {{unsigned ip|141.101.99.216}}

"This is obviously a joke, as sentient spacecraft cannot be created with current technology." Yeah, will need a citation on that... [[Special:Contributions/108.162.229.148|108.162.229.148]] 13:23, 1 August 2014 (UTC)

Definitely a joke. Appolo 12’s call sign was Yankee Clipper, and a clipper ship would not carry any harpoons.[[Special:Contributions/108.162.216.129|108.162.216.129]] 14:04, 1 August 2014 (UTC)
: I'd believe someone might have smuggled some Harpoon (or even any brand of) rum up there, then brought it back down with them, ingested or otherwise (thus the drop right after the mission). Alternately, "incident" could be something more along the lines of losing an empty bottle of rum during a spacewalk (farfetched as it may be) and it reentering the atmosphere(?) - probably no more than stories, though - nothing official probably exists about anything like that going up or down in any manner.{{unsigned|Brettpeirce}}

Moby Dick is, let's say, extremely far-fetched. It was not the ship that was hunting the whale and harpooning it by itself. --[[Special:Contributions/141.101.104.143|141.101.104.143]] 17:27, 1 August 2014 (UTC)

Could the Apollo 12 bump possibly be a reference to Futurama? "We're whalers on the moon, we carry a harpoon" [[Special:Contributions/199.27.130.246|199.27.130.246]] 15:51, 1 August 2014 (UTC)

Maybe it is a reference to a print ad by Bacardi-Martini, mentioned briefly in Buzz Aldrins book Magnificent Desolation. [[Special:Contributions/141.101.104.82|141.101.104.82]] 22:10, 1 August 2014 (UTC)

While it is more likely that a harpoon (or bottle of harpoon rum) went to space and returned with the Apollo 11 mission, the caption makes it sound like the harpoon was only in space for the duration of the incident. Might it have been created and destroyed there?[[Special:Contributions/108.162.219.171|108.162.219.171]] 22:54, 1 August 2014 (UTC)

;Whale killing
Saying "sailors would throw harpoons at a whale until it died" betrays a limited understanding of the process. Harpoons were barbed, and were meant to stick in the whale while it sounded (went deep.) A length of (about half-inch) rope kept the harpoon connected to the whaleboat. After the whale was exhausted (from towing the whaleboat while trying to shake off the harpoon? idk) the whaleboat could approach it, and the boatswain (''not'' the harpooner) would kill it with an unbarbed lance. Holling Clancy Holling's ''Seabird'' shows how it was done, with pictures and all. [[Special:Contributions/173.245.54.153|173.245.54.153]] 19:00, 1 August 2014 (UTC)

;Svend Foyn
Norwegian whaler Svend Foyn revolutionarized whaling by inventing explosive harpoon to hunt whales. He made whaling much easier and quicker. This method saved Norway from the famine thread in 19th century.{{unsigned|Multimotyl}}

;[Citation needed] joke.
I thought the sentence "of course, Rosetta is not sapient[Citation needed]", was sort of funny. It implied "of course, Rosetta is not sapient[or is it?]", adding a bit of humour and mystery to the explanation.

1402: Harpoons

2014-08-01T12:00:43Z

108.162.222.77: /* Explanation */

1402: Harpoons

2014-08-01T11:58:51Z

108.162.222.77: /* Explanation */