Keeping Time: From Sundials to Atomic Clocks

Keeping Time: From Sundials to Atomic Clocks

The interest in keeping a record of time has progressed over thousands of years with timepieces ranging from ancient sundials to modern atomic clocks. The earliest examples of measuring time were based on observing the position of the sun, moon, and constellations. This practice was followed by man-made devices, traced to early civilizations, using the […]