Apur-phy.244 net.space utzoo!decvax!pur-ee!purdue!pur-phy!rb Mon Mar 15 09:11:45 1982 Re: variable c My comment seems to have been mis-interpreted. The correct way to handle bending of light, etc in a gravitational field is to treat the curvature tensor as an effective index of refraction. I.e., light slows down in a gravitaional field. I hope I haven't confused anyone. Ross Bogue