Atom interferometer provides most precise test yet of Einstein's gravitational redshift
Wednesday, February 17, 2010 - 13:07
in Physics & Chemistry
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.