Make: Online : Quantum-logic clock is the new hotness in accuracy

Quantum-logic clock is the new hotness in accuracy

The quantum-logic clock, which detects the energy state of a single aluminum ion, keeps time to within a second every 3.7 billion years. The new timekeeper could one day improve GPS or detect the slowing of time predicted by Einstein's theory of general relativity.

[via Wired Science]

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Posted by: adcurtin on February 6, 2010 at 1:04 AM

How does one actually calculate that the cock is accurate to 1 second in 3.7 billion years?

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