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Researchers hope to detect faint radiation emanating from a new laboratory version of a black hole event horizon
March 6, 2008 | 4
Researchers have reproduced an event horizon similar in principle to ones found around black holes by shining laser pulses down a microstructured, or microscopically patterned, optical fiber, shown here....[More]
Detail of the broad spectrum, or supercontinuum, light output from a microstructured fiber used to create an analog of a black hole's event horizon. Dispersed by a prism and projected onto the screen, the light contains the full rainbow....[More]
Experimental setup for measuring the shortening, or blue-shifting, of an infrared beam's wavelength at an event horizon in a spool of optical fiber (blue circle added for clarity)....[More]
To have any hope of detecting faint radiation emanating from an analog of a black hole event horizon in a new laser-based method, researchers will have to create short, high-intensity laser pulses shaped like a shark fin....[More]
Hawking Radiation is the faint glow theorized by physicist Stephen Hawking to stream from a black hole due to pair creation, the simultaneous birth of twin particles of light, near the event horizon....[More]
Simulating the event horizon of a white holean insideout black hole that permits no light to enteris as simple as letting water from the tap pour onto a flat surface, as shown here....[More]
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4 Comments
Add CommentAccording to Stephen Hawking a black hole shrinks because the radiation from a member of a pair of virtual particles escapes from the event horizon thus causing the black hole to loose mass. But wouldn't the other twin that fell through the event horizon into the black hole add mass to the black hole, therefore cancelling out the any mass radiated away by the twin?
Reply | Report Abuse | Link to thisWhat is (piscine) particles?
Reply | Report Abuse | Link to thisThis I think is the perfect example of the superficial use of a foreign language by Americans who by doing so, want to or mean to add a "sophisticated" _regard_ to a subject of complicated interest; this is meant to add a feeling to the meaning also _here I suppose it refers to things or people doing many things & going in many directions at the same time like in a swimming pool -piscine-
Reply | Report Abuse | Link to thisThis is not meant as a criticism but at the contrary I wish here to encourage specially the learned American to acquire, in a lighter way mainly, a deeper use of French for general knowledge as well as closer interaction & communication, same as for the French to acquire a better knowledge & use of English in general.
:-) Friendly Urs :-x
Alfred.
Hi, the "piscine" gag wasn't supposed to make it into the published story. It referred to the analogy of particles as fish swimming upstream. You know, like Pisces. I removed the reference, which was confusing.
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