Physicists have built the most accurate clock ever: one that gains or loses only one second every 40 billion years.
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#Physics #Timekeeping #ScientificBreakthrough #PrecisionClock #AmazingInnovation
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#Physics #Timekeeping #ScientificBreakthrough #PrecisionClock #AmazingInnovation
Physical Review Letters
Clock with $8\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}19}$ Systematic Uncertainty
An optical lattice clock with a 19-digit frequency accuracy results from the precise evaluation of the dynamic component of the clock transition's blackbody radiation shift.
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