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Published on Nov 18, 2018
Time may be a human construct but that hasn't stopped physicists from perfecting it.
JILA’s 3-D Quantum Gas Atomic Clock Offers New Dimensions in Measurement https://www.nist.gov/news-events/news... “JILA physicists have created an entirely new design for an atomic clock, in which strontium atoms are packed into a tiny three-dimensional (3-D) cube at 1,000 times the density of previous one-dimensional (1-D) clocks. In doing so, they are the first to harness the ultra-controlled behavior of a so-called “quantum gas” to make a practical measurement device.”
Jun Ye: Let There Be Light (and Thus, Time) https://www.youtube.com/watch?v=bbBmk... Dr. Jun Ye, professor of physics at the University of Colorado at Boulder and a fellow of both the National Institute of Standards and Technology and JILA, explains how lasers are used to manipulate atoms inside and out for ultra-precise clocks.