astronomy the emission of particles by a black hole. Pairs of virtual particles in the intense gravitational field around a black hole may live long enough for one to move outward when the other is pulled into the black hole, making it appear that the black hole is emitting radiation
Science Terms That We All Pretend To KnowIn the spirit of scientific community and understanding, let's clear up some misconceptions around a few of the most misunderstood scientific terms. Let’s boldly go where no man has gone before.
Deep State And Other Trending Words On Dictionary.comTurpitude, venality, and demagogue When former CIA Director John Brennan weighed in on the firing of former Deputy Director of the FBI Andrew McCabe, he likely expected to make waves. But did he know he’d send searches for his word choices skyrocketing on Dictionary.com? The director’s tweet, issued in response to President Donald Trump, represents the biggest spike in searches on Dictionary.com this week! If …
Word Origin for Hawking radiation
C20: discovered by Stephen Hawking
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
A form of radiation believed to emanate from black holes, emerging from the region just beyond the black hole's event horizon (from which no radiation can emerge). Pairs of virtual particles and antiparticles, created naturally in the vacuum fluctuation near the black hole, are split apart, one particle falling into the black hole and the other radiating away. The energy lost to such radiated particles is believed to come from the mass of the black hole.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.