Message boards :
SETI@home Science :
A thought that turned into a question
Message board moderation
Previous · 1 · 2
Author | Message |
---|---|
Scorpio Send message Joined: 13 Apr 08 Posts: 21 Credit: 112,736 RAC: 0 |
Well, yes. I know there is a lot of static, but I was reffering to the stuff that matters. Too many staellites. ;-) |
Cyrax_Darkmual Send message Joined: 6 Dec 02 Posts: 57 Credit: 13,078,222 RAC: 6 |
Hello guys Please help me understand. If gravity reacts at the speed of light. Why is light its self effected by gravity. IE light cannot excape a black hole. It seems to me that gravity gone wild ( blackhole ) the effects of gravity in a black hole reacts much faster than light. Cyrax_Darkmual@yahoo.com Cyrax Darkmaul 94th Druid. Mob Killer life is not measured by the breaths we take but by the moments that take our breath. |
skildude Send message Joined: 4 Oct 00 Posts: 9541 Credit: 50,759,529 RAC: 60 |
http://en.wikipedia.org/wiki/Photon light photons everything. Technically speaking a photon=light photons have no mass. If you understand that gravity is always present then its not so hard to understand. You also have to understand that a blackhole causes massive gravitation pull. More than we could ever get in a lifetime from our own sun. Because of the massive gravity even the photon cannot escape from the blackhole. There is eveidence that gamma radiation is emitted from blackholes. heres an interesting thought though. We know blackholes prevent light from escaping. So what about a star. A star emits light would a stars mass slow a photon down? is their a gradient for light emission/gravity wells? In a rich man's house there is no place to spit but his face. Diogenes Of Sinope |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 31066 Credit: 53,134,872 RAC: 32 |
Hello guys Space_time is really complex, but here is a simplification. If the hole has been there a while then the gravity has too. So that photon you shoot out feels all that gravity and can't escape. If the hole hasn't quite formed yet that photon doesn't feel enough gravity to stop and it escapes. I think you get the above two. At the instant the hole forms gravity goes out at the speed of light just like the photon. It is a race of the event horizon and the photon. Depends on the exact starting position as to who wins. Like any door shutting there is always a last thing that gets out. |
skildude Send message Joined: 4 Oct 00 Posts: 9541 Credit: 50,759,529 RAC: 60 |
so at the event horizon wouldnt we see a narrow band of photons that are "frozen" in place if we had the facilities to detect them. In a rich man's house there is no place to spit but his face. Diogenes Of Sinope |
Norman Copeland Send message Joined: 2 Jan 08 Posts: 593 Credit: 68,282 RAC: 0 |
Hello guys That may be, for the special relativity theory, but, will that be sufficient for modern string theory. Known as 'exotic particles' travelling in and out of different dimensions that will be dictating different gravity laws, which will the photons [perhaps gluons] merge with. |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
There is no "gravity"; space itself is warped into a convoluted singularity that is turned in on itself. light follows geodesics which in this case are hopelessly wound into an infinitesimally small knot. |
skildude Send message Joined: 4 Oct 00 Posts: 9541 Credit: 50,759,529 RAC: 60 |
There is no "gravity"; space itself is warped into a convoluted singularity that is turned in on itself. light follows geodesics which in this case are hopelessly wound into an infinitesimally small knot. much like my intestines after a jalapeno bean dip In a rich man's house there is no place to spit but his face. Diogenes Of Sinope |
©2025 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.