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Tuesday, 18 September 2012
quote [ ...That light may hold within it the answer to one of the biggest mysteries in physics – why the expansion of the universe is speeding up. ]
[sci&tech] [by vahid@9:44pmGMT] [+10 Interesting] |
Comments
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arrowhen
said @ 11:37pm GMT on 18th Sep
Where are the JOECAMs of yesteryear? |
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lilmookieesquire
said @ 12:33am GMT on 19th Sep
It's ASTROJOECAM now. He's in space. |
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underdog
said @ 1:44am GMT on 19th Sep
Yeah, CYBERSPACE!!!!!!! ROFLMFAO HO HO HO!!!!!!!!! |
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eggboy
said @ 2:46am GMT on 19th Sep
[Score:1 Informative]
It was the new Lepage glue gun that did it in for him, glues whole squadrons together in the air. |
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chold_numa
said @ 11:52pm GMT on 18th Sep
Good year for science. Higgs boson, now this. |
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-_-
said @ 1:42am GMT on 19th Sep
The expansion is speeding up because the galaxies are getting further from other. Dark Energy is Gravity beyond a certain range, hence galactic "foam". Note the distance between galaxies is getting larger, but not the galaxies themselves .. why should space between galaxies be expanding but not the distance between solar systems, suns, and planets within galaxies? But whatever, that's just me, I aint going to argue about it. (0.02) |
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GordonGuano
said @ 3:50am GMT on 19th Sep
I read a short story where people were zipping about interstellar space using an engine that burned spacetime, making more spacetime as a byproduct. Apparently enough species had caught onto this throughout the universe that it explained expansion. My personal layman's theory is that our 3-D universe is just the math of a higher-dimensional universe working itself out, and that it's higher dimensions all the way down. |
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happiest_sadist
said @ 4:16am GMT on 19th Sep
[Score:1 Funny]
where 'higher dimensions' == 'turtles' |
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crom
said @ 5:23am GMT on 20th Sep
Note the distance between galaxies is getting larger, but not the galaxies themselves How do you know that? |
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-_-
said @ 7:27am GMT on 20th Sep
I do not "know" that, but I would expect there to be some mention of it if Galaxies were being seen to expand with anything like the energy that the distances between them is. In fact, if the two expansions were similar enough then how detectable would the expansion of the distance between galaxies be? We would only know because the reference frame of solar system sizes allows us to see if galaxies were expanding .... but would we see that if solar systems were expanding (well, and the planets themselves as well)? But that would require atoms to expand as well, and that's just silly. In fact, it is my understanding that many galaxies are slowly collapsing in on their higher gravity cores... or mysteriously not spreading out (hence the whole "dark matter" thing). Just call it a "hunch". |
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