you must have completely missed my post. i explained it, but it is far from GR. he is only 14. if you want GR, try: http://en.wikibooks.org/wiki/General_relativity

Sorry. I deleted an essentially useless post. I noticed that, once again, I have failed to see that the page i was reading on was not the last page...go me...

I did read your post, and I agree with you. I was just pointing out that science, or more specifically GR, has yet to explain why Mass/Energy causes gravity or what its purpose is. I appologize If I wasn't clear.

I'd have said neither heat or rotation but mass.

OK so question... I hear that they say gravity is a weak force in nature, but what if we think its weak because the matter on our planet is so undense? Like, maybe on a pulsar, since the mass is so great in such a small area, that gravity shows its true power? Am I missing something here? I guess my question is why is gravity a weak force based on what we observe as its effect on our planet? Is it due to its effect on a particle to particle basis?

 

(oh and LMAO at the guys who voted in this poll )

read my post with the LaTeX. it explains it.

(oh and LMAO at the guys who voted in this poll )

I voted in this poll...

I said spin because astronauts in training spin around very fast on some sort of thing (sorry' date=' that's all I know about it). The spinning increases the G's to match those of taking off in a space shuttle. So maybe we shouldn't be laughing at all.

 

[Gah']

that's a sort of artificial gravity caused by momentum, though...

it isn't gravity. it is an object trying to travel in a straight line, but being stopped.

its an acceleration?

the acceleration is towards the center of rotation.

I voted in this poll...

I said spin because astronauts in training spin around very fast on some sort of thing (sorry' date=' that's all I know about it). The spinning increases the G's to match those of taking off in a space shuttle. So maybe we shouldn't be laughing at all.

 

[Gah']

 

LMAO!!! Dont worry I still love ya bro

Yeah, "centrifugal force," which is the outward force cause by rotation does not exist but is actually a "pseudo-force," since the rotation frame is non-inertial.

I voted in this poll too, just to see how many people had actually voted.

Yeah' date=' "centrifugal force," which is the outward force cause by rotation does not exist but is actually a "pseudo-force," since the rotation frame is non-inertial.

[/quote']

 

But the actual acceleration is centripetal, which, as yourdad notes, is toward the center of rotation.