Tiny Asian country beats China, USA to world's most accurate clock — Lutetium-based device loses 1 second every 264 billion years
Singapore's CQT reports two lutetium-ion clocks with record-evaluated uncertainties of 1. 2 and 1. 3 × 10⁻¹⁹, making them the most accurate atomic clocks to dateThe stated results top Wuhan's calcium clock (4.
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