I didn’t know we were going straight around a warped space. I just thought we orbited around.
Learn something new every day. Well, maybe every other day.
Learn something new every day. Well, maybe every other day.
What I’ve learned is that you nerds get laid a lot less than some us.
Space time in my house is just called “alone time”
The only thing that keeps gravity from crushing is the fact that atoms will only compress so far under ordinary conditions. Earth doesn’t have anywhere near the mass to do that.Conversely, what keeps gravity from essentially crushing us? I understand the earth’s gravity is weak, relatively speaking, but I always thought gravity counteracted the also weak centrifugal force. That’s the suspected reason behind the earth bulging along its equatorial diameter compared to its polar.
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55 bucks for the hard back. Holy hugeness. This book is so heavy it is creating its own black hole.Your son has got a sharp mind! Can't wait to see what the young man will do with it, in time.
I'm going to intersperse the replies in your original post, hopefully to avoid confusion:
The only thing denser, with higher gravity, is a black hole.
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What's cool is the earth doesn't orbit the sun because of gravity, but due to the fact that the mass of the sun curves space, creating a "depression" in space. View attachment 1698150
Yep. Whoever figures out how we can manipulate gravity like we do electromagnetics is going to go down as the most significant person in history.To conceptualize spacetime, I believe, will require 4th dimensional thinking. We barely do three dimensional thinking. On top of which, we are limited to what our physiology allows us to perceive of the universe, which is insanely small range of things compared to what's going on at any given moment.
Also, the further I get into engineering studies, the more I realize the idea of spacetime or gravity is likely just waiting for some genius to create some set of mathematical equations to solve. The whole F=ma and all that jazz, but the gravity or spacetime equivalent of it.
Yep. Whoever figures out how we can manipulate gravity like we do electromagnetics is going to go down as the most significant person in history.To conceptualize spacetime, I believe, will require 4th dimensional thinking. We barely do three dimensional thinking. On top of which, we are limited to what our physiology allows us to perceive of the universe, which is insanely small range of things compared to what's going on at any given moment.
Also, the further I get into engineering studies, the more I realize the idea of spacetime or gravity is likely just waiting for some genius to create some set of mathematical equations to solve. The whole F=ma and all that jazz, but the gravity or spacetime equivalent of it.
Actually, parts of the universe have been expanding faster than the speed of light from the moment it was created. Or so goes some of the current thinking. Can't help but think they're on to something.I've always loved General Relativity.
If spacetime can be compressed, which is what we perceive as gravity, does that mean that the universe is finite? If not, how can it be compressed if it is infinitely expanding?
If it is infinitely expanding, does spacetime compression indicate that the compression of spacetime occurs at a faster rate than the expansion of the universe?
Awesome! All geodetics are linear, at the local level!55 bucks for the hard back. Holy hugeness. This book is so heavy it is creating its own black hole.View attachment 1698763
OK Bozos, stop clowning around.
Here's my unanswered question: Does the universe spin? Everything in the universe does spin. Conservation of angular momentum seems to be an absolute. So: does the universe itself spin? And how could we tell, if it does? Or doesn't? And what would the answer, either way, mean to us?Ok, nevermind. After thinking about this a bit, it dawned on me that the video and other representations are only showing 1 plane for clarity and simplicity. In actually, it would form a "bubble" of warp around the sun.
Move on, nothing to see here.