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You could talk about the tiny quartz crystal and the piezoelectric effect used to provide a stable time base for the electronic movement.
You could describe the atomic workings of the quartz oscillator and how it resonates at a specific and highly stable frequency, and how this is used to accurately pace a timekeeping mechanism.
You can get any date you like depending on the assumptions you make.
And that is what geologist do, they make up an assumed geological history for rock depending on the numbers that come from the geochronology lab (see Dating secrets).
And you have to check to make sure he touches the edge at the end of each lap.
Without these observations you cannot be sure that the time is valid.
A swimming race illustrates the simple principles involved in measuring time.
This swimmer is competing in a 1,500 metre race and we have an accurate, calibrated wristwatch.
We note that at the instant the swimmer touches the edge of the pool our wristwatch reads and 53 seconds.
How long has the competitor taken to swim the 1,500 metre race?
But without reliable witnesses the accuracy of the watch makes no difference.Tags: Adult Dating, affair dating, sex dating