Yhn first seen 16 h ago, last 31 min ago, peak #16

First thorium nuclear clocks begin ticking in Vienna and Beijing

Original: In Vienna and Beijing, the first (thorium) nuclear clocks begin to tick

Scientists in Vienna and Beijing have started the world's first nuclear clocks, based on transitions in the thorium-229 nucleus. Unlike conventional atomic clocks that use electron transitions, nuclear clocks promise greater stability and could probe whether fundamental constants of physics change over time. The development marks a milestone in precision timekeeping and basic physics research, drawing attention from the scientific community.

Why now: The first working nuclear clocks represent a major breakthrough in precision measurement, with implications for testing fundamental physics.

ViennaBeijingthorium-229nuclear clock

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• In Vienna and Beijing, the first (thorium) nuclear clocks begin to tick · gumby · 146

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