Thursday, May 30, 2019

In A First, Scientists Took The Temperature Of A Sonic Black Hole


In A First, Scientists Took The Temperature Of A Sonic Black Hole
Scientists measured the temperature of a lab-made sonic black hole, which traps sound instead of light. If the result holds up, it will confirm a prediction of cosmologist Stephen Hawking, who first proposed a surprising truth about black holes: They aren't truly black.

May 30, 2019 at 09:32AM
via Digg http://bit.ly/2XdZMrD

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