tag:blogger.com,1999:blog-35671139490765285172008-03-09T23:04:31.656ZAlexBlogger2125tag:blogger.com,1999:blog-3567113949076528517.post-14796713160314749512008-03-09T22:57:00.002Z2008-03-09T23:01:43.649ZPhysicists at St-Andrews University have created what they call an artificial event horrizon from ultra fast laser pulses.<br /><br />Dr Friedrich Leonhart said "We used ultrashort light pulses in microstructured optical fibres to demonstrate the formation of an artificial event horizon in optics. We have created analogues of the horizon - not real black holes - that only act on light in the fibre, and we observed a classical optical effect, the blue-shifting of light at a white-hole horizon" according to the St-Andrews news release.<br /><br />There have been many analogies to the event horrizon of black holes but with this one they hope to be able to test some of Steven Hawkins theories about black hole radiation.Alextag:blogger.com,1999:blog-3567113949076528517.post-85534890620645698672007-12-10T22:59:00.001Z2007-12-10T22:59:20.317ZhelloAlex