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Physicists use thorium-229 to power the world's first working nuclear clock

A clock built from thorium-229 has crossed an important line, from a long-discussed concept to a working device. The shift matters because this clock does more than keep time. It can also watch for ...
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World’s first working nuclear clocks built with thorium nucleus after decades of effort

For decades, nuclear clocks have existed as one of physics’ most tempting promises. A device that could keep time even more accurately than today’s best atomic clocks. Now, two independent research ...
New Scientist

First working nuclear clock heralds a new era in timekeeping

A clock based on radioactive thorium atoms realises a long-held ambition, demonstrating a technology that could eventually beat the accuracy of today’s best atomic clocks ...
New Scientist

First quantum grandfather clock could probe where gravity comes from

Researchers have designed a quantum version of a pendulum clock. It could shed light on timekeeping in the quantum realm ...