Timekeeping: In this modern 21st century we have the most sophisticated devices for the purpose of Timekeeping but how did the people of antiquity measure time? In a Lace, File write about 4 ancient ways of Timekeeping, most
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Timekeeping: In this modern 21st century we have the most sophisticated devices for the purpose of Timekeeping but how did the people of antiquity measure time? In a Lace, File write about 4 ancient ways of Timekeeping, most
1) Sundial
A sundial was invented in ancient India, also said to be used by Egyptians and Chinese, it shows the time of day when there is sunlight by the relative position of the Sun. It contains a flat plate (dial) and a kind of a chronograph (gnomon), which reflects a shadow onto the dial. As the Sun appears to move, the shadow aligns with different lines, which are mentioned on the dial to tell the time of day. This was not accurate. However it is the one of the oldest methods used.
2)Using Celestial Bodies
The earliest method of measuring time was through observation of the celestial bodies - the sun, moon, stars and the five planets known in antiquity. The rising and setting of the sun, the solstices, phases of the moon, and the position of particular stars and constellations have been used in all ancient civilizations to demarcate particular activities.
3)Water Devices
Time measuring devices were also invented which used water. Perhaps evolving from earlier oil lamps, which were known to burn for a set period of time with a defined quantity of oil, the early so-called water-clocks released a specified quantity of water from one container to another, taking a particular time to do so. Perhaps the earliest came from Egypt around 1600 BCE, although they may have borrowed the idea from the Babylonians. The Greeks used such a device (a klepsydra) in Athenian law courts and it determined how long a single speech could last: approximately six minutes.
4) Sand click or the hour glass
The hourglass was widely used as a timekeeping device up until the sixteenth century in Western Europe. Its design was simple. Two globes (also called phials or ampules) of glass were connected by a narrow throat so that sand (with relatively uniform grain size) flowed from the upper globe to the lower.