English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

.... assume that the gravity doesn't crush me. And is there any situation where will be able to see myself and can shake my own hand. No mirror jokes.

2006-10-08 06:16:35 · 6 answers · asked by MrSandman 5 in Science & Mathematics Physics

Didn't make my question clearer enough... if I were to draw a straight line on a piece of paper and screw it up, this simple diagramatical illustration can be used to demonstrate light moving through space that has been warped. But what if is not light that is being "bent", what if it was me... would I notice the effects?

2006-10-08 10:51:59 · update #1

Not go back in time to shake my own hand but for space to be sufficiently bent so that it doubles back on itself and I can see myself.

2006-10-08 10:53:32 · update #2

I think I read that was possible?

2006-10-08 10:53:53 · update #3

6 answers

The first part of this depends upon the amount of gravitational distortion. A very small amount, you probably would not feel (can you feel the effect of the gravity of a mountain compared to the gravitational force of the planet?).

If the distortion is significant, then yes, you would also feel it. A human in a space suit cannot jump off the surface of the moon. He or she would remain within the distortion created by the mass of the moon.

Sorry, no amount of gravity will allow you to see yourself or shake your own hand, unless you mean right hand shaking left hand.

2006-10-08 06:56:29 · answer #1 · answered by Richard 7 · 62 0

If space around you was distorted, you would experience that as gravity. The stronger the distortion, the stronger the gravity.
Gravity is bent space-time. We are attracted to the Earth because the Earth's mass distorts local space-time.

As I understand it, the current understanding of physics does not rule out time-travel as impossible, but there is no evidence to suggest that it has ever actually happened and it would require some pretty amazingly exotic circumstances to allow you to go back/forwards in time and shake your own hand.

2006-10-08 13:36:11 · answer #2 · answered by Homebody123 2 · 0 0

You already know how to feel the effects of gravity. You have already felt the effects you would experience with increased or decreased gravity. The principle of equivalence tells you that the increased weight you feel in the valley of a roller coaster is indistinguishable from increased gravitational force. To feel anything qualitatively different, you'll need to visit a black hole, where roughly speaking, the gravitational force is intense enough to prevent light from escaping.

2006-10-08 17:28:55 · answer #3 · answered by Frank N 7 · 0 0

That's a good question as far as the gravity. Imagine you are on a carnival ride going around very fast so you are pinned up against the wall. If one arm were suddenly free of that effect, I feel quite confident that you would know it. (acceleration is equal to gravity in this thought experiment)

2006-10-08 13:22:02 · answer #4 · answered by Anonymous · 0 0

I believe this is theoretically possible, although I don't think something like this has ever been seen. In quantum physics anything can happen, or does happen in one slice of space time or another. Interesting question.

2006-10-16 08:33:31 · answer #5 · answered by spkmyer 3 · 0 0

You do its called weight....

2006-10-16 00:40:38 · answer #6 · answered by Rodney Kawecki 2 · 0 0

fedest.com, questions and answers