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15h ago
This New Clock Is So Precise It Could Soon Redefine The Second
- A team in China reports a strontium optical lattice clock with unprecedented precision and stability.
- The clock meets the research threshold for redefining the SI second and could aid dark matter searches.
- The work suggests multiple optical clocks could jointly support a future second redefinition.
- CGPM discussions are underway, with a proposal expected for 2030.
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