How did they use the merkhet?

The merkhet was an ancient Egyptian astronomical instrument used for timekeeping and navigation. It consisted of a horizontal bar with a plumb line, allowing users to align the device with celestial bodies, particularly the stars. By observing the position of stars at night, priests and astronomers could determine important times for religious rituals and agricultural activities. This tool played a crucial role in the development of early Egyptian calendars and timekeeping methods.