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briduende
#1
Jun22-11, 05:59 PM
P: 1
Hi every1

My question is: we know nothing travel faster than light. Gravity travel at the speed of light, right? Now: light cannot escape from a black hole. So: gravity cannot escape from a Black Hole.

Then... why can we feel the gravitational field of a black hole if gravity cannot be transmitted outside the black hole??

Imagine that the black hole suffer some change: it eat some other black hole or ver big star... the gravity field will change. But if gravity travels at the speed of light and light cannot escape from a black hole... how could we feel the change of the system?

Thanks!!
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