| | | | |
|
The time according to atoms
4/26/12
One second in 30 million years!
The accuracy and stability of atomic clocks exceed all other oscillation systems. The typical stability of an atomic clock is 10-15 sec per sec. Hence, in the space of a second, we expect a maximum time fluctuation of a millionth of a billionth of a second. In the space of one day, this means that there will be a maximum fluctuation of 10-10 sec, i.e. a tenth of a billionth of a second (a tenth of a nanosecond). In other words, you would have to wait 30 million years to observe two clocks drifting by one second... “which would equal less than 3 minutes since the beginning of the earth more than 4 billion years ago”, Thierry Bastin tells us enthusiastically. And these limits are continuously getting shorter: we’re now at 10-18 sec per sec!
![Atomic-clock]( "Atomic-clock.")
|
|
| | | | |
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
duZLnrxeyMekZETX
