Friday, 12 February 2016

gravitational wave: Word of the day for February 12, 2016

gravitational wave , n :
(physics) A fluctuation in spacetime caused by accelerating mass, which propagates as a wave at the speed of light. The existence of gravitational waves, predicted by Albert Einstein a century ago, was confirmed yesterday (11 February 2016) by the Laser Interferometer Gravitational-Wave Observatory (LIGO).

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