Which metal is used in atomic clocks for precision?
Correct answer: Cesium
Uninitialized
A really interesting question and answer. I had no idea of the background to this and its huge importance in our lives.
Buzzem
Computers and networks now are so fast that we need time synchronization to be accurate to within nanoseconds.... 0.000001 a microsecond, so much smaller even than that!
Tom
Buzzem, a nanosecond is 10^-9s = 0.001 microseconds. You might be thinking of a picosecond, 10^-12 = 0.000001 microseconds.