Most precise test yet of Einstein's gravitational redshift

[babea]

While airplane and rocket experiments have proved that gravity makes clocks tick more slowly — a central prediction of Albert Einstein's general theory of relativity — a new experiment in an atom interferometer measures this slowdown 10,000 times more accurately than before, and finds it to be exactly what Einstein predicted.


http://www.berkeley.edu/news/media/rele ... hift.shtml

 

[ramparts]

And co-authored by a member of the President's cabinet, too. Now there's something you don't see every day.