How do scientists measure time? (3 complete sentences please)

It may seem like a strange way to measure time, but the duration of a specific number of oscillations, or “ticks,” in a wave of electromagnetic radiation is the official method by which scientists define the second.

samuel de champlain. in 1608, king henry iv sponsored pierre dugua, sieur de mons and samuel de champlain as founders of the city of quebec with 28 men. this was the second permanent french settlement in the colony of canada.