Hypothetically, if one remove the Sun from its place, when the Earth would be affected? Momentary, by the speed of light or by some speed specific to the gravity...?
sort by best latest
Yes sorry I did mean 8 Minutes and not seconds. A senior moment I'm afraid.
So, then there is not matter unless existence. In the case the sun becomes non-existent then the laws of physics would not apply as there would not be anything to act upon, unless something remained?
I am not sure that the Earth will also move at the same time, as you say. It is reasonable to expect that it would be almost at the same time, but I am not sure if we can say so precisely. I think that this is an open problem in physics...
flysky : it is an assumption of course... but the reason i said it would move right away is because the size of the sun in proportion to the earth... I was thinking of the concept of magnetism while stating my assumption. A little delay : yes.
We make an assumption: all atoms are interconnected. There is permanent tension b/w the Sun and the Earth and b/w the Earth and you. We call this tension ‘gravity’. We make the Sun disappear. The Earth HAD BETTER fly away INSTANTANEOUSLY!
Actually the speed of gravity is unknown. We are working hard to assign a value to "gravity" but it has proven elusive to all attempts. We just don't know enough, with our current physics, to solve the "mystery" of gravity.....yet!
Gravity is not a force. Gravity is a tension, and tension is NOT a force. Stretch a rubber band and hold. Feel the tension. There is no motion. If someone cuts the rubber band, the tension HAD BETTER disappear INSTANTANEOUSLY! It won't take 8 mins!