2025 One Hertz Challenge: Precision Timekeeping at One Becquerel

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Source: Hackaday
2025 One Hertz Challenge: Precision Timekeeping at One Becquerel
Photo: Hackaday
TL;DR Summary

Mihai Cuciuc created a unique clock that ticks at one becquerel, using a clever setup with an Am-241 source and coincidence detection to produce a stable one-hertz signal based on radioactive decay, despite the inherent randomness of such decay processes.

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