NIST makes the world's most accurate atomic clock
The world's most accurate atomic clock has made its appearance. The atomic clock was designed by the
National Institute of Standards and Technology (NIST) researchers, Colorado. The atomic clock is at least 5
times more precise than the world's best cesium clock.
The clock is an experimental one, with one single mercury atom. Microwave lasers are shined on to the
clusters of cesium atoms and this is the basic principle behind every ordinary atomic clock.
For each and every second, the clocks count 9,192,631,770 oscillations of the laser. In most of the atomic
clocks now, one second is lost after the clock runs continuously for 60 million years. But the atomic clock
produced by NISTwill not lose or gain any second for the next 400 million years.
The atomic clocks may be subjected to some external things such as gravitational field. So a clock atop a
mountain may tick a bit different than one placed below the mountain.
Anyway, the atomic clock produced by NIST is not for sale.
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