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New forum needs a new catchall thread, says I! Rules:
Remember this website has goons so caveat emptor
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Feb 23, 2021 13:30
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I'll start! Is the Cosmic Microwave Background basically the edge of the observable universe?  As I understand it, it is the radiation released by the sliiiightly uneven soup of energy just as it condensed into matter/particles, red-shifted due to the expanding universe. Since it's radiation and travels at the speed of light, wouldn't the CMB only be visible from the edge of the observable universe, and everything which emanated from closer than that would've already passed us? e: or has somehow any of it been slowed down or echoed back by gravity?
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Feb 23, 2021 13:38
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Have you ever seen Uranus?
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Feb 23, 2021 14:31
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How long can someone survive exposed to vacuum? Would your eyes burst, your anus evert and your lungs collapse? Or did the Expanse get it right?
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Feb 23, 2021 15:11
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Ventral EggSac posted:How long can someone survive exposed to vacuum? Would your eyes burst, your anus evert and your lungs collapse? Or did the Expanse get it right? it’s actually pretty neat: https://www.scientificamerican.com/article/survival-in-space-unprotected-possible/
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Feb 23, 2021 15:17
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Eat My Ghastly rear end posted:it’s actually pretty neat: Wow thanks, I guess that we have some time is a good thing. I didn't realize we had done those experiments, but make sense. Hard to imagine them. I had already invoked certain imagery in my question I suppose.
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Feb 23, 2021 15:32
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BrianBoitano posted:I'll start! Is the Cosmic Microwave Background basically the edge of the observable universe? The observable universe is a constantly expanding sphere, so the CMB is the constantly expanding surface of that sphere. It represents light from the moment of recombination when the plasma suffusing the universe cooled enough allow neutral atoms to form and light to travel great distances without running into something. As you said, that light eventually got redshifted into the microwave portion of the spectrum. Here's some videos to help explain some of the cool things about the CMB, including showing the orange color it would have appeared if you had been alive to observe it at the moment of recombination. https://www.youtube.com/watch?v=3tCMd1ytvWg https://www.youtube.com/watch?v=C4CKtEQJGMY
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Feb 23, 2021 15:43
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hi space facts thread there happens to be a humble bundle at the moment which is just a big pile of e-books about space, probably everything you could possibly want to know about space. I got it and am too stupid to understand much of it but you might be able to figure out some of its mysteries.
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Feb 23, 2021 16:55
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Ajaxify posted:The observable universe is a constantly expanding sphere, so the CMB is the constantly expanding surface of that sphere. It represents light from the moment of recombination when the plasma suffusing the universe cooled enough allow neutral atoms to form and light to travel great distances without running into something. As you said, that light eventually got redshifted into the microwave portion of the spectrum. That is really neat and exactly what I was looking for, thank you! This related video to the second one was also really cool, I didn't know the inflationary period d-d-d-dropped the bass: https://www.youtube.com/watch?v=PPpUxoeooZk
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Feb 23, 2021 17:19
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what does RSF stand for
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Feb 23, 2021 20:31
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If you nut in space do it push you backwards
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Feb 24, 2021 00:51
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If you have a gas giant (like Jupiter) does that mean there's nothing solid there at all? Like if we tried to land there, would there be anything to 'land on', as such?
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Feb 24, 2021 00:58
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HOTLANTA MAN posted:If you nut in space do it push you backwards yes
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Feb 24, 2021 01:31
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But you must aim mostly downwards so your thrust vector passes through your center of mass, or else you'll spin more than zoom along Note that "downwards" in space is hard to gauge as your balls are no longer plumb
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Feb 24, 2021 01:39
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Kevin Palpatine posted:If you have a gas giant (like Jupiter) does that mean there's nothing solid there at all? Like if we tried to land there, would there be anything to 'land on', as such?
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Feb 24, 2021 06:19
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BrianBoitano posted:But you must aim mostly downwards so your thrust vector passes through your center of mass, or else you'll spin more than zoom along my balls are always plumb
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Feb 24, 2021 06:28
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What is space, and why?
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Feb 24, 2021 10:23
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Frances Nurples posted:What is space, and why? Space is the simplification of spacetime that makes the most sense to folks who didn't experience relativistic effects during their evolution. The universe is the way it is because if it wasn't the way it is then we wouldn't be here to notice it.
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Feb 25, 2021 14:43
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Could tom brady beat a team of aliens in space football
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Feb 25, 2021 15:21
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Pimpcasso posted:Could tom brady beat a team of aliens in space football He'd be playing for the aliens so no
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Feb 25, 2021 15:32
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| # ? Feb 26, 2021 10:09 |
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Pimpcasso posted:Could tom brady beat off a team of aliens in space
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Feb 25, 2021 15:37
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