Yhn first seen 21 h ago, last 4 h ago, peak #16

First thorium nuclear clocks start ticking in Vienna and Beijing

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

Scientists in Vienna and Beijing have built the first nuclear clocks based on thorium-229, a milestone reported by the New York Times. Unlike atomic clocks that use electron transitions, nuclear clocks use transitions in the atomic nucleus, promising greater precision and stability. Researchers say the devices could improve tests of fundamental physics, GPS timing and the search for dark matter, and the simultaneous debut in two labs is drawing attention.

Why now: The first-ever operation of nuclear clocks is a major scientific milestone reported in top outlets.

ViennaBeijingthorium-229New York Times

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• In Vienna and Beijing, the first (thorium) nuclear clocks begin to tick · gumby · 155

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