1. And gravity waves are to gravity, what em waves are to em radiation. 2. :Maybe gravity waves can escape from a black hole but light waves cannot? 3. Unlike surface gravity waves , internal gravity waves do not require a sharp interface. 4. The pattern is of atmospheric gravity waves above the surface of the ocean. 5. Because other things also travel at the speed of light like gravity waves . 6. Unlike surface gravity waves, internal gravity waves do not require a sharp interface. 7. Other candidates are gravity waves from the interior that dissipate in the atmosphere. 8. This contrasts with non-linear surface gravity waves , which have sharp crests and flat troughs. 9. Many efforts have been made to detect gravity waves directly, but all have failed. 10. LIGO should detect when a gravity wave makes space shrink by a little bit.
