Radio-controlled
Clocks
"How
they work"
Radio controlled clocks do exactly what
clocks are meant to do: Indicate absolutely precise time. All the time.
Through the most remarkable technology breakthrough in 30 years, radio-controlled clocks
are linked to the most accurate clock in the world, the U.S. Atomic Clock.
The U.S. Atomic Clock, which is managed
by the National Institute of Standards and Technology (NIST) - Time and Frequency
Division, is America's "paragon of precision". This clock measures each
second of time as 9,192,631,770 vibrations of a cesium-133 atom in a vacuum. This
makes the U.S. Atomic Clock accurate to within one second every million years. This
Clock sends out a signal at 1:00 am. This signal is received by the radio-controlled
clock which resets itself to the exact microsecond. In fact, it sets to the exact time
within 20 nanoseconds! They will adjust for time zones, leap year, and can be
reset in a moment by pressing a single button.
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