isn't that an intersection
― do u like green ez & jam (darraghmac), Tuesday, 1 July 2014 07:20 (nine years ago) link
anyways idk re particle motion but absolute zero occurs on the saula rd around mid November,normally when the taxi has gone home and you've lost yr jacket
― do u like green ez & jam (darraghmac), Tuesday, 1 July 2014 07:21 (nine years ago) link
not sure exactly what your article was talking about NV but...
yeah 'cease to move' is the classical description of what goes on at absolute zero
in quantum mechanics it's not that simple because they're delocalized (i.e. their location is fuzzy via the uncertainty principle)
― caek, Tuesday, 1 July 2014 16:22 (nine years ago) link
http://static01.nyt.com/images/2014/08/06/science/comet-gif-67P/comet-gif-67P-articleLarge.gif
― Little Saint Hugh of Lincoln (nakhchivan), Thursday, 7 August 2014 04:08 (nine years ago) link
forces are propogated by massless particles. e.g. the electromagnetic force, which is the force that dominates our lives, keeps us warm, prevents us from walking through doors, etc., is propagated by the best known massless particle, the photon.
massless particles travel at exactly the speed of light. therefore forces can only propagate at the speed of light, you are correct.
there is a thought experiment about this involving the sun suddenly disappearing. if this happened then the earth would stay on its orbit for 8 minutes, before suddenly flying off into space, because that's how long light takes to reach us.
the reason all this makes sense is complicated and difficult to explain without getting into special relativity, which is not my strongest subject, and not something i've ever been good at teaching. but perhaps if you're comfortable with the idea that you can't send information at faster than the speed of light, then it would make sense to you that you can't have forces that operate faster than that (or instantaneously) because they could be used to transmit information at faster than the speed of light.
this wikipedia article makes a decent stab at this. of course once you throw in quantum mechanics all hope of understanding this is lost, because that stuff makes no fucking sense whatsoever.
― caek, Saturday, 5 December 2009 22:28 (4 years ago) Bookmark Flag Post Permalink
fave ilx post, I think
― is this empty sanitism (darraghmac), Thursday, 7 August 2014 08:39 (nine years ago) link
fave ilx thread title, sometimes
― TracerHandVEVO (Tracer Hand), Thursday, 7 August 2014 16:25 (nine years ago) link
it's a good jingle
― mattresslessness, Thursday, 7 August 2014 16:33 (nine years ago) link
http://apod.nasa.gov/apod/image/1408/comet_on_3_august_2014.jpg
― caek, Friday, 8 August 2014 11:47 (nine years ago) link
s/t for this thread
https://www.youtube.com/watch?v=eGPhUr-T6UM
― ♪♫ teenage wasteman ♪♫ (goole), Friday, 8 August 2014 17:15 (nine years ago) link
I am disappointed in the appearance of that comet tbqh
― lag∞n, Friday, 8 August 2014 17:28 (nine years ago) link
were they called the snorkels, that kids cartoon, calypso music intro, the snorkels?
― is this empty sanitism (darraghmac), Friday, 8 August 2014 17:59 (nine years ago) link
https://www.youtube.com/watch?v=I4ALjDSsMd4
― The aim of Rooney is spot correct (Daphnis Celesta), Friday, 8 August 2014 18:03 (nine years ago) link
man i used to watch the hell out of that show it was not too good
― lag∞n, Friday, 8 August 2014 18:17 (nine years ago) link
Their Gargamel was The Sand Witch. Great stuff.
― andrew m., Friday, 8 August 2014 18:24 (nine years ago) link
Who's your Gargamel, caek?
― pplains, Friday, 8 August 2014 21:05 (nine years ago) link
c++
― caek, Tuesday, 12 August 2014 00:03 (nine years ago) link
http://dhavalgada.files.wordpress.com/2007/09/bjarne.png
― Peeking at Peak Petty (Sufjan Grafton), Tuesday, 12 August 2014 02:18 (nine years ago) link
lol
― caek, Tuesday, 12 August 2014 02:27 (nine years ago) link
https://pbs.twimg.com/media/BvVvgzYIIAAXwui.jpg:large
https://twitter.com/quark1972/status/501429546101784576/photo/1
― caek, Friday, 22 August 2014 20:43 (nine years ago) link
wow i hope everyone is okay
― lag∞n, Friday, 22 August 2014 20:47 (nine years ago) link
would that be as big as the one that finished off the dinosaurs?
― autumn reckoning faction (xelab), Friday, 22 August 2014 20:54 (nine years ago) link
about the same size
― caek, Friday, 22 August 2014 21:40 (nine years ago) link
the real mystery is why they were all standing in the same spot
― Roberto Spiralli, Friday, 22 August 2014 22:47 (nine years ago) link
they was all in Noah's Ark iirc
― Daphnis Celesta, Sunday, 24 August 2014 09:55 (nine years ago) link
Noah's arc of descent morelike
― nakh is the wintour of our diss content (darraghmac), Sunday, 24 August 2014 10:33 (nine years ago) link
http://secondlanguage.blogspot.com/2014/08/academic-virtues.html
i love this post with the fire of one thousand suns
― caek, Monday, 25 August 2014 14:41 (nine years ago) link
I'm such a terrible citizen, I would never have guessed that landing an unmanned satellite thingy on a comet was...a thing? I mean we landed on the moon. A comet is a challenge?? This is a little disingenuous and I'm watching a news spot about it now.
― Orson Wellies (in orbit), Thursday, 13 November 2014 15:07 (nine years ago) link
It took 10 years?? What have scientists been doing all this time?
http://images-cdn.9gag.com/photo/avZGG4q_460sa_v1.gif --caek
― lag∞n, Thursday, 13 November 2014 15:23 (nine years ago) link
"We" didn't land on the moon, the US government did, which has trouble starting a website now.
― things lose meaning over time (Dr Morbius), Thursday, 13 November 2014 15:35 (nine years ago) link
uh i dont see any mention of the obummer or shrillary in there ur slippin m8
― lag∞n, Thursday, 13 November 2014 15:37 (nine years ago) link
insignificant puppets both
anyhow i thought comets were all flamey; just when ppl are watching, i guess
― things lose meaning over time (Dr Morbius), Thursday, 13 November 2014 15:38 (nine years ago) link
I sorta admire the dig at "has trouble starting a website now" if you're referring to healthcare.gov's failures to launch during a government shutdown over a year ago.
― pplains, Thursday, 13 November 2014 15:42 (nine years ago) link
And I don't know what happened there, but it wasn't me.
http://i.imgur.com/ONTDWjS.png
― pplains, Thursday, 13 November 2014 15:43 (nine years ago) link
landing on comets is hard because they are small and move on weird orbits
them being small is a problem for two reasons (1) small target! (2) low gravity which means very little room for error.
like they did as good a job as they could on this one, and it *still* bounced up ~1km
it's a big deal scientifically because planets are made out of comets so we learn about how planetary systems formed, how earth formed, how earth got its atmosphere, etc., etc.
― caek, Thursday, 13 November 2014 16:22 (nine years ago) link
https://pbs.twimg.com/media/B2P1UPJCMAAVpBX.png
https://twitter.com/roseveleth/status/532538957490561024
― caek, Thursday, 13 November 2014 16:23 (nine years ago) link
lol europe, cool eyewear bro
― caek, Thursday, 13 November 2014 16:24 (nine years ago) link
http://smallpondscience.com/2014/11/12/new-requirement-for-scientists-you-cannot-be-a-sexist-pigdog/
― Orson Wellies (in orbit), Thursday, 13 November 2014 16:24 (nine years ago) link
one of the things i find most moving about space exploration is that you literally can't do it on your own. it requires a team.
and then you get dudes like that.
― caek, Thursday, 13 November 2014 16:25 (nine years ago) link
xxp Thanks! That all makes sense. I guess it's more that if you had asked me before yesterday, Have we ever landed anything on a comet, I probably would have been like, Idk, surely we must have by now?
Anyway. Comets!
― Orson Wellies (in orbit), Thursday, 13 November 2014 16:26 (nine years ago) link
previously we had smashed like a ton of copper into a comet for the lols, but that was recent
― caek, Thursday, 13 November 2014 16:27 (nine years ago) link
https://en.wikipedia.org/wiki/Deep_Impact_(spacecraft)
the guy fieri of science xposts
― bizarro gazzara, Thursday, 13 November 2014 16:27 (nine years ago) link
feel like the fact that europe gently landed a spacecraft on a comet, while america fired a lump of metal into a comet and named the mission after a movie is a metaphor for something
― caek, Thursday, 13 November 2014 16:30 (nine years ago) link
https://upload.wikimedia.org/wikipedia/commons/9/99/ITS_Impact.gif🇺🇸🇺🇸🇺🇸
― caek, Thursday, 13 November 2014 16:42 (nine years ago) link
first bounce took 2 hours, eh
― things lose meaning over time (Dr Morbius), Thursday, 13 November 2014 16:52 (nine years ago) link
planets are made out of comets
i need to sit down
― goole, Thursday, 13 November 2014 16:55 (nine years ago) link
Like a stolen checkbook.
― pplains, Thursday, 13 November 2014 16:57 (nine years ago) link
Have they gendered it yet? http://www.clickhole.com/blogpost/might-not-be-politically-correct-enough-you-overly-1411
― ljubljana, Thursday, 13 November 2014 16:59 (nine years ago) link
I want to call it dottie
― $0.00 Butter sauce only. No marinara. (Sufjan Grafton), Thursday, 13 November 2014 17:01 (nine years ago) link