Bending of space and time, is it true?

[AshUchiha]

What about my answer?? Can I conclude that or not Drakkith?

 

[phinds]

I see... but I was asking about the "rotational speed", and not by the a perceiver's eye, but say a machine or something which calculates it.

I have no idea what you are talking about

 

[Drakkith]

Rotational

Then an object with a larger radius will have a larger rotational speed* for any given angular velocity compared to an object with a smaller radius. Mass has nothing to do with it.

*Note that rotational speed usually means the same thing as angular velocity, which is revolutions per unit of time, typically rotations per second. For this post I mean the speed at which the surface at the equator is moving.

 

[AshUchiha]

Then an object with a larger radius will have a larger rotational speed* for any given angular velocity compared to an object with a smaller radius. Mass has nothing to do with it.

*Note that rotational speed usually means the same thing as angular velocity, which is revolutions per unit of time, typically rotations per second. For this post I mean the speed at which the surface at the equator is moving.

The more mass the more size the larger radius? . And that note thing you mean theta?

 

[Drakkith]

The more mass the more size the larger radius?

Not in general, no. A 1kg ball of lead is much smaller than a 1kg ball of aluminum.

And that note thing you mean theta?

No, I mean exactly what I said.

 

[PeterDonis]

So if I place a clock inside this shell, wait a period of time, then retrieve this clock, it should read as having less time passed than a clock left behind far away from the shell.

Yes. But the difference will be the same no matter where inside the shell you place the first clock. If spacetime were curved inside the shell, the difference in times would vary with location inside the shell.

what if I wait twice as long, according to the 2nd clock, before retrieving the 1st clock?

Then the difference will be larger; but again, it won't depend on where inside the shell you place the first clock.

 

[Drakkith]

Okay, that's just what I thought would happen. Perhaps I worded my earlier post badly. I didn't mean to suggest that the curvature between different points inside the shell is non-zero.

 

[AshUchiha]

Not in general, no. A 1kg ball of lead is much smaller than a 1kg ball of aluminum.
No, I mean exactly what I said.

*Size? , and Angular Displacement=Theta right?

 

[Drakkith]

*Size? , and Angular Displacement=Theta right?

I'm sorry I can't understand what you're trying to ask. Please put more effort into your posts, as you've made this thread extremely difficult to follow.

 

[AshUchiha]

I meant I misplaced size by mass, that's why I put a "*" mark, sorry if you didn't understood. And I see I'm a starter so I will face some problems at first, but I'll try my best. Hope you can bear with my way of posting

 

[phinds]

I meant I misplaced size by mass, that's why I put a "*" mark, sorry if you didn't understood. And I see I'm a starter so I will face some problems at first, but I'll try my best. Hope you can bear with my way of posting

Just to be sure you understand, the biggest problems with your way of posting are:

(1) you make categorical statements of things being true when in fact you simply misunderstand reality. It's perfectly fine for beginners to have lots of misunderstandings. We all do that. What's not OK is to state your misunderstandings as though they were fact.
(2) You don't seem to clarify your thoughts before posting and so we have a really hard time following what you are talking about.

 

[AshUchiha]

Just to be sure you understand, the biggest problems with your way of posting are:(2) You don't seem to clarify your thoughts before posting and so we have a really hard time following what you are talking about.

Well, I always do that to check any imperfection in my question, but I guess I need to clarify my question to get a better answer. I see thanks