/sci/ - Science & Math » Thread #12413081

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Universes with interesting physics

Anonymous Thu 03 Dec 00:14:27 2020 No.12413081 View Reply Original Report

Quoted By: >>12413184 >>12413890 >>12414095 >>12414193

ITT: Describe some laws of physics different to our own that would produce intereresting results

Anonymous

Anonymous Thu 03 Dec 2020 00:17:54 No.12413091 Report

Quoted By:

Gravity is not the attraction of matter to itself, but the repulsion of empty space away from itself. In this sense, Stars and planets aren’t held together by the matter trying to squeeze together, but the space all around the body is pressing in from all sides

Anonymous

Anonymous Thu 03 Dec 2020 00:29:48 No.12413125 Report

Quoted By:

Spinning fast And having centrifugal force is what gravity is

Not sum mysterious force

Anonymous

Anonymous Thu 03 Dec 2020 00:32:17 No.12413132 Report

Quoted By:

Or is it centripetal force?

Anonymous

Anonymous Thu 03 Dec 2020 00:44:05 No.12413176 Report

Quoted By: >>12414149

The stronger a gravitational field matter is in, the less gravity it has.
There's two versions of this:
>the reduction effect affects itself, creating a negative feedback loop; meaning that increasing the mass of an object does always increase the gravity, but only a tiny bit if that object is already very massive
>the reduction effect is dependent on what the gravity would be ignoring the reduction effect; so increasing the mass of an object can actually reduce the gravity if that object is already very massive

I kinda wanna do a simulation of this when I learn how to use Godot well enough for that.

Anonymous

Anonymous Thu 03 Dec 2020 00:47:29 No.12413184 Report

Quoted By: >>12414107

>>12413081
if the laws of physics really were in IRL as they are described in modern academic physics textbooks, that'd be freaky as all fuck

Anonymous

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Anonymous Thu 03 Dec 2020 04:52:26 No.12413890 Report

Quoted By:

>>12413081
light does not exist

Anonymous

Anonymous Thu 03 Dec 2020 06:39:04 No.12414095 Report

Quoted By:

>>12413081
a completely symmetric universe. Nothing exists probably

Anonymous

Anonymous Thu 03 Dec 2020 06:47:13 No.12414107 Report

Quoted By:

>>12413184
textbooks are full of approximations that lead to singular expressions. is infinite mass/charge or whatever allowed?
what about violating the uncertainty principle since you know the exact location of everything? you should simulate a universe like that and let me know how it goes

Anonymous

Anonymous Thu 03 Dec 2020 07:13:13 No.12414149 Report

Quoted By:

>>12413176
You don't need a game engine to simulate something like that, of your already proficient in a language just use a graphics library

Anonymous

Anonymous Thu 03 Dec 2020 07:37:43 No.12414193 Report

Quoted By:

>>12413081
There is a finite universe, and it is expanding, but beyond it nothing exists. If you could travel significantly faster than all light and matter in the universe, there will be a point where no more particles, no atoms, no background radiation, and no light reach. It will be beyond the scope of any form of star or the big bang itself, and it will go on infinitely, leaving the entire universe and all that exists behind it.

Anonymous

Anonymous Thu 03 Dec 2020 07:45:56 No.12414207 Report

Quoted By:

The reason for our dark sky, red shift, and cosmic microwave background are not because we're in the early stages of the universe, but already well into the theoretical end. Compared to what we presume is a beginning, we're in the final stretches of our universe and all that exists. Most stars and galaxies have burned out long ago or become black holes, and are now unobservable, accounting for "dark matter" in the universe.

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