During ten seconds of weightlessness Brynle Barrett from the Laboratory of Photonics, Numerical Sciences and Nanosciences at the University of Bordeaux monitors an experiment to test the ‘weak equivalence principle’ – or why a feather in a vacuum falls as fast as a hammer.

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Triple star system 'can reveal secrets of gravity'

Gravity news - "finding deviations (in the equivalence principle) would indicate a breakdown of general relativity" http://bbc.co.uk/news/science-environment-25598051

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Astronomers have discovered the first pulsar (PSR J0337+1715) with two stars circling it. By watching the three objects orbit one another, observers will soon be able to perform the best-ever test of the "strong equivalence principle", which is a key prediction of Albert Einstein's general theory of relativity. #astrophysics

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Test of equivalence principle searches for effects of spin-gravity coupling

An orbital experiment is about to test to see if objects really fall at same speed in a gravitational field — or wither some exotic physics may be detected.

For those that are following #captainamerica say #saynotohydracap photo from CJ De Leo

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rocket, accelerating

Equivalence Principle

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