Definition of one second #cesium137 #Time #AtomicClock #Physics
2:10
YouTubeBeyond Curiosity by Aman Singh
Definition of one second #cesium137 #Time #AtomicClock #Physics
How do we define one second? You might think a second is simply 1/60th of a minute. But modern science defines it much more precisely. Today, one second is defined using the atom Cesium. Scientists measure the natural vibrations of cesium-133 atoms. One second is defined as exactly: 9,192,631,770 oscillations of a specific radiation associated ...
57.8K views3 weeks ago
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