Thread: Which is faster?

I saw the answer on a ducomentary about string theory here. The gravity part is on 2nd and 3rd chapter of Einsteins dream. Basically they make a scenario where the Sun dissapears. In newtons theory all the planets would fly away before the light would eaven reach them. Ofcourse Einstein saw a problem and solved it by finding out that a gravitational wave (on the fabric of space-time) would travel with the speed of light. The lack of gravity would take effect exactly when the light reached the planets.

Also en.wikipedia.org/wiki/Speed_of_gravity .