Thursday, October 15, 2009

Slate's science needs to go back to highschool

This article on Slate claims the invention of an artificial black hole. Too bad that the device described is really a "black body" rather than a "black hole". A black body is a device that is a perfect absorber of radiation, no radiation is reflected, it is all absorbed. In principle an ideal flat black paint would form a black body. In practice an opening into a box, whose interior is painted black will be even blacker than the paint alone.
A black hole is a gravity field so strong that the escape velocity exceeds the speed of light.
And Slate doesn't know the difference. Typical poorly educated newsies.

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