Measurement of Time Using Periodic Motion Any object that is moving is said to be in motion. In order to measure time, we need a motion that repeats itself in equal intervals. Such a motion is called periodic motion.Some examples of periodic motion are the rotation of the Earth about its axis, the revolution of the Earth around the sun, the revolution of the moon around … [Read more...] about Measurement of Time Using Periodic Motion
Time
What Are The Instruments Used To Measure Time
Measurement Of Time In the beginning, people used calendars to keep a track of years, which were divided into months and days (not exactly what we use today, but something similar). Later, people started keeping track of the time of the day. They started building various instruments to divide the day into smaller parts. An instrument used to measure time is called a … [Read more...] about What Are The Instruments Used To Measure Time