As it turns out, there are multiple reasons why we’ve stuck with customary units ... time—especially as new technologies tend to be developed using the metric system in order to meet ...

A nanosecond (ns) is a unit of time in the metric system, equal to one billionth (10-9) of a second (s). The second is the base unit of time in the International System of Units (SI), making the ...

Dosimeters used to measure radiation at laboratories, hospitals and in the field must be calibrated against a national standard to ensure that measurement results are consistent with the International ...