Title: NIST Measures General Relativity’s Time Dilation with Atomic Clocks
Summary:
NIST scientists have made increasingly precise measurements of Einstein’s general relativity theory using atomic clocks. In a 2022 experiment, they measured time dilation at the smallest scale ever by comparing two tiny clocks separated by just a millimeter within the same cloud of atoms. This is equivalent to the width of a sharp pencil tip. In a 2010 experiment, they measured the effect by comparing two independent atomic clocks positioned 33 centimeters (about 1 foot) apart. These experiments demonstrate the ability to precisely measure general relativity’s effects using advanced atomic clock technology.
Source: https://www.nist.gov/education/more-graphics-about-einsteins-general-relativity-and-your-age
Keywords: Metrology, Atomic, Relativity, Time dilation, Clocks
