From Shakespeare's, Henry the IV.
A sketch of a "time piece" reported to be over 6000 years old. By international agreement 1 second is the precise interval it takes for an atom of the element cesium to make 9,192,631,770 vibrations.
A sketch of a "time piece" reported to be over 6000 years old. By international agreement 1 second is the precise interval it takes for an atom of the element cesium to make 9,192,631,770 vibrations.
1 comment:
Interesting tidbit, bet you didn't know one of the claims to fame for my company is that we make cesium clocks!...dwh..
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