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02/10/1956 Commercial atomic clock

3:45

Atomic Clocks

4:57

NIST F2: The Atomic Clock | 100 Wonders | Atlas Obscura

5:01

NIST Launches a New U.S. Time Standard: NIST-F2 Atomic Clock

American National Radio Company presents first commercially available atomic clock. It was called the Atomichron. The price was 50.000 dollars. Time measuring mechanism was based on a constant frequency of the oscillations of the cesium atom. The clock was 2 meters high, half a meter wide and 45 centimeters deep.
    • Essentials 

    • Atomichron