View Single Post
Old 06-07-2007, 04:29 AM   #8 (permalink)
dave lukins
Military Professional
 
Join Date: 01-04-07
Location: cheshire uk
Posts: 5,135
Country:
Quote:
Originally Posted by gunnut View Post
Question: if nothing can travel faster than light, then how does a blackhole work
As a Star starts to collape its gravitational field at the surface becomes stronger and the escape velocity increases. The escape velocity increases to 300.000kps. the velocity of light. After that time any light emitted from the Star would not be able to escape and would be dragged back by its own gravitational field..As special Theory of Relativity says "nothing can travel faster than the speed of light" so if its light cannot escape, nothing else can. the result..A black hole
dave lukins is online now   Reply With Quote