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/sci/ - Science & Math

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4332590 No.4332590 [Reply] [Original]

Can anyone explain how Gravity stretches time?
>In your own words

>> No.4332603

No.

>> No.4332605

So, there is this thing we call the metric tensor, yes? It tells us what shape spacetime is. And we have this other thing we call the stress-energy tenso, yes? It tells us what sort of stuff is around.

The metric tensor depends upon the stress-energy tensor. Simple, yes?

>> No.4332609

For some reason high acceleration forces cause time to dilate.
I have some ideas on why, but absolutely no way to scientifically probe them.

>> No.4332676

Physics fag here.

Massive objects attract other objects, using weak gravitational forces.

Time is but movement of the three dimensions.

When gravity stretches time, all that is happening is that gravitational effects on movement alter the way time would normally affect moving objects.
dumbass.

>> No.4332684

Less gravity, more time.

Walk to the store on earth. Takes 10 minutes. More gravity.
Walk to the store on moon. Takes 17 minutes. Less gravity.

>> No.4332697

>>4332684
This is correct.

Also, less gravity = tits get saggy slowlier.

>> No.4332714

>>4332609
pls go on

>> No.4332716

What's a dilation? Is it like stretching?

>> No.4332719

>>4332684
I feel like time is moving faster now, is it because the gravity is getting stronger?

>> No.4332723

>>4332719
You'd have to verify it was more than a feeling first.

>> No.4333155

>>4332714

I had an idea a while back about a universal bandwidth limit due to a uniform subatomic oscillation rate for most of the things we deal with normally.

If this was the case then being exposed to more acceleration would mean that part of your bandwidth for typical 4d movement would be diverted to conferring acceleration to particles exposed to the forces strictly in 3d.

Going incredibly fast and being exposed to intense gravity both cause time to dilate.

>>4332716

Yes, that's a decent enough analogy. To make larger.

>> No.4333177

>>4333155

Responding to my own post because that actually just clicked another way also.

The effects of speed and acceleration forces would be explicable that way without a problem.

Part of the bandwidth at incredible speeds is diverted from temporal movement because the particles in question would have to be changing their quality of location at such a fantastic rate that there would be fewer oscillations to 'move through time' at a normal rate.

>> No.4333185
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4333185

>>4333155
>>4333177

>> No.4333197

>>4333177
>>4333155

That would also explain the apparent speed limit of C, with finite bandwidth to convey information you simply couldn't move that much material that quickly because it wouldn't be able to respond quickly enough.

>> No.4333395

>>4333177
that could be an explaination for time slowing down with high speed, but not time slowing down with large mass

>> No.4333615

>>4333395

A particle has to be bombarded by other particles in order to do anything. Only so many of these interactions may be possible at a given rate.

In order for an object to accelerate it must be in communication with an object transmitting this force to it.
The reason your hand doesn't go through your desk is because your body broadcasts its force into the material, and the material broadcasts its force into you.

For an object to move it must change its locational qualities in much the same way.

So seemingly reasonably this could explain time dilation due to speed and gravity if indeed anything like this takes place.

What happens at the edge of a black hole?

To restate as best I can. For anything at all to happen requires complex interactions. What happens when the bandwidth available for interaction is exceeded? Objects apparently hanging on the event horizon for the duration of the black holes life?

>> No.4333634

>>4333185
go back to /v/, faggot

>> No.4334221

Anyone got any commentary on the bandwidth idea presented earlier?