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Would it be the size of an elephant? A city? A mountain range?
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Oct 21, 2016 15:27
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Wouldn't it just be the size of a bacteria's universe?? edit: I am not an expert in analogies.
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Oct 21, 2016 15:37
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The universe is pretty big, and you won't be able to understand it by going down as small as bacterium. Not even an atom would help once you get past the galaxy level, I don't think. Wikipedia says bacteria are typically a few micrometres in length, which is a millionth of a metre, so: 0.000 003m. An example human might be 1.8m - so divide 1.8m by 600,000 to get the size of a "standard" bacterium. The earth to the moon is on average roughly 385,000km. Divide that by 600,000 and you get 0.64km. So for us to go to the moon (in distance terms) is a bacterium travelling 0.64km. Say we want to go to the sun, and we wait til it's at its "average" distance of 150,000,000km. That's 250km for bacteria. The solar system is about 50 AU in diameter, or 7.5 billion km, so 75,000,000,000km. Divide that by 600,000 and you get: 125,000km - so for a bacterium, going 1/3 of the way to the moon. There are 100-400 billion stars in our galaxy (Milky Way), although I think I read this could double once we get the replacement for the Hubble up. The diameter of the Milky Way is 100-180 kly (thousand light years), let's take 150 for safety, so that's 150 * 9 trillion km, 1350 trillion km. For bacteria, divide by 600,000, that's 225,000,000,000 km or 3 times the size of our solar system. And there are apparently 2 trillion galaxies in the observable universe, but that will probably increase. At this point I've given up trying to make comparisons on the scale because what's the point
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Oct 21, 2016 16:02
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A hydrogen atom is 25 picometres (25 trillionths of a metre), so if a 1.8m human were the size of a hyodogen atom, divide by 72 000 000 000. The Milky Way would become 18, 750km I guess? I don't know, maths isn't my strong point. The solar system would be 100m in diameter. e: sorry for the double post. Also, no matter how badly I might have miscalculated it, at least it won't hold a match to the vacuum catastrophe: https://en.wikipedia.org/wiki/Cosmological_constant_problem quote:In cosmology, the cosmological constant problem is the disagreement between measured values of the vacuum energy density (the small value of the cosmological constant) and the zero-point energy suggested by quantum field theory. Sulla Faex fucked around with this message at 16:25 on Oct 21, 2016 |
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Oct 21, 2016 16:19
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That's a very good answer, thank you! So basically the universe would still be unimaginably huge even if we were absolutely tiny. Hard to wrap my mind round it...
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Oct 21, 2016 23:28
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Yeah there's nothing like physics and the scale of the universe to bring your ego down a peg or two. We're just shambling meat stilts held together by a few dim sparks of electricity, that's about it. We're not capable of comprehending the universe, nor are we meant to. You can also spend a bit of time thinking about the age of the universe, or even the timeline of human evolution (i.e. when modern humans existed) compared to the duration of human civilisation, if you want to feel even more like a teeny little nonevent
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Oct 22, 2016 12:10
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duckmaster posted:That's a very good answer, thank you! So basically the universe would still be unimaginably huge even if we were absolutely tiny. Hard to wrap my mind round it... I think it's easier to comprehend if you just accept the fact that we are absolutely tiny. Bacteria are tinier but, in the context of the size of the universe, humans and bacteria are of similar size.
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Oct 22, 2016 16:18
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duckmaster posted:That's a very good answer, thank you! So basically the universe would still be unimaginably huge even if we were absolutely tiny. Hard to wrap my mind round it... If someone says that they can grasp how big the universe is, laugh at their dumb faces. Noone can wrap their heads around the universal scale.
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Oct 23, 2016 23:12
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Lima posted:If someone says that they can grasp how big the universe is, laugh at their dumb faces. Noone can wrap their heads around the universal scale. I was thinking about this in the shower a few days ago. The entire universe (as in, what we *can't* see yet) is as to the observable universe, as the observable universe is to a mathematical point. 
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Oct 30, 2016 06:48
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Can you go into that a bit, with numbers if possible? e: gently caress it's not october anymore
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Nov 18, 2016 20:51
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Sulla-Marius 88 posted:Can you go into that a bit, with numbers if possible? https://en.wikipedia.org/wiki/Observable_universe#The_Universe_versus_the_observable_universe
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Nov 18, 2016 21:02
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Big.
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Nov 21, 2016 06:26
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Infinite, regardless of scale infinite is still infinite.
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Nov 21, 2016 07:49
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I'm not helping you with your homework, OP.
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Nov 21, 2016 20:06
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Or as Douglas Adams put it, "Space is big. Really big. You just won’t believe how vastly hugely mindbogglingly big it is. I mean you may think it’s a long way down the road to the chemist’s, but that’s just peanuts to space."
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Nov 21, 2016 22:41
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If humans were the size of bacteria, how big would the universe be? ...The same size, surely?
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Feb 4, 2017 02:58
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Size is infinite, I believe. I can't answer your question because I don't feel like doing all that math for you, but I think you can go infinitely deeper and infinitely larger. Our universe obviously has a limit when it comes to biggest and smallest, because I believe our universe is finite. Size is the same as numbers, you can always go bigger, and smaller. It goes forever. You can always zoom in more, or zoom out more. At no time will zooming in or out more become impossible, because that would make no sense. So, your question is relevant and has an answer that can be figured out, but in the grand scheme of things it's irrelevant. In my eyes.
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Feb 4, 2017 11:03
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| # ? Apr 23, 2024 16:56 |
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It would be the size of the universe.
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Feb 5, 2017 02:27
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