2025 One Hertz Challenge: Atomic Decay Clock is Accurate But Not Precise - At this point, atomic clocks are old news. They’ve been quietly keeping our world ... - https://hackaday.com/2025/08/19/2025-one-hertz-challenge-atomic-decay-clock-is-accurate-but-not-precise/ #2025hackadayonehertzchallenge #radioactivedecay #geiger-muller #atomicclock #radioactive #clockhacks #geigertube #contests