Yhn ScienceScience first seen 20 h ago, last 37 min ago, peak #4
First Thorium Nuclear Clocks Built in Vienna and Beijing
Original: Teams in Vienna and Beijing have built the first thorium nuclear clocks
Research teams in Vienna and Beijing have independently built the first nuclear clocks based on thorium-229, a milestone long sought in precision timekeeping. Unlike atomic clocks that rely on electron transitions, nuclear clocks use energy transitions in an atom's nucleus, promising greater stability and potential tests of whether fundamental constants of physics change over time.
Why now: A long-anticipated scientific breakthrough in timekeeping that could enable new tests of fundamental physics has finally been achieved.
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