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How can international time-standard clocks be regulated by atomic vibrations that are accurate to 1 second on 80 million years?
Wiki User
∙ 11y ago
The best of these are currently the 'cesium fountain' atomic clocks in which the cesium atoms, and their atomic spectral emissions, is cooled to close to absolute zero (to minimise thermal effects). These can reach stability of the order of 3 parts in 10(-16). The atomic clock at NIST in the US is of this type. (And in UK, and France etc.)
Which is equivalent to an uncertainty of 1 second in 100 million years.
Wiki User
∙ 11y ago
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