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latest user's comments
|#15 - What if the bird decides to take a **** while he'…||06/19/2013 on Meanwhile in Russia||0|
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|#58 - Comment deleted||02/19/2013 on Actor Trivia Part 2||0|
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#5 - Onemanretardpack (11/21/2012) [-]
|#2 - OC - stands for original content, and that is what this is, it… [+] (3 new replies)||11/21/2012 on Comic Con||-1|
#5 - Onemanretardpack (11/21/2012) [-]
|#18 - TwinChin: Breaking Down part 1||11/18/2012 on youtube||+1|
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|#2 - Nobody cares about that anymore... where've you been the last …||10/17/2012 on Read Desc.||-7|
|#429 - 37. Is wrong, because if we assume the universe was created wi… [+] (35 new replies)||10/02/2012 on Can You Make It? (Part Two)||0|
#482 - vivapinatapro (10/02/2012) [-]
The reason everything is compressed is because everything in the physical universe started smashed together in the Planck Epoch. Secondly, as the galaxies moved apart the light would still be streaming in, but with a "shift" in their light that would give it a red or blue hue depending on the orientation.
#506 - vivapinatapro (10/02/2012) [-]
I don't think you understand the idea of expansion. Everything in the universe started out exponentially closer to each other. So 2000 years ago, various celestial bodies were closer to us by a factor of billions. And even closer 2000 years before that. Shorter distance = less time it takes to travel. The light you are seeing may not be nearly as old as you believe it to be because of this. I understand we wont see shit that is happening today. But it doesn't mean we're seeing light from millions of years ago.
#530 - vivapinatapro (10/02/2012) [-]
...the fuck? That is not at all what I just said. '
You have planet A and star B
They are 5 light-years away from each other, but they are moving apart from each other. As time goes on the light from star B takes longer and longer to get to planet A, but after 5 years the star is visible to the planet. Thousand of years later Star B might be hundreds of light-years away. regardless it would be visible. It's not like the star just stops emitting light.
#486 - andalitemadness (10/02/2012) [-]
The universe was too hot in the beginning for stars (and thus galaxies) to form. I know stars are hot, but when the universe was first made, it was way hotter than that. For conditions to become right for starmaking, a lot of time had to pass. Also, the ANdromeda galaxy, the one OP is talking about, is known to have formed 10 billion years ago, 4.6 billion years after the Universe was made.
#502 - andalitemadness (10/02/2012) [-]
It's not like I'm the one who figured it out. Scientists have figured it out based on the rate of expansion and by calculating the temperature based on how hot things get when compressed and the temperature of a singularity, which the big bang was before the bang.
#548 - vivapinatapro (10/02/2012) [-]
"Many astronomers are working hard to measure the Hubble constant using a variety of different techniques. Until recently, the best estimates ranged from 65 km/sec/Megaparsec to 80 km/sec/Megaparsec, with the best value being about 72 km/sec/Megaparsec."
They're using a "constant" that they can't even verify. As a fellow student of science, I respect their work. But I'd be a fool to consider any of that as hard fact.
#556 - andalitemadness (10/02/2012) [-]
Read the first link where it talks about the Hubble Constant. They solve the crisis you talk about using WMAP, which is why that's the official thing for saying how old things are. They say "The key to this is that by knowing the composition of matter and energy density in the universe, we can use Einstein's General Relativity to compute how fast the universe has been expanding in the past" and actually have a total uncertainty of only 1%
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