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Atomic Clocks

A powerful laser is directed into a jet of gas, forming a bright plasma that generates ultraviolet light. As this light interacts with the remaining gas in the vacuum chamber, it creates a visible white line. This method allows scientists to accurately measure the energy required to excite the thorium-229 nucleus, which is crucial for developing a future nuclear clock.

Nuclear Clocks: The Next Frontier in Ultraprecise Timekeeping

How to make a nuclear clock tick

Illustration of a clock floating in blue background

Clocks to detect dark matter in space

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