explain the various methods of measurement used in ancient times
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Answer:
The units of length used in ancient India included the dhanus, or dhanush (bow), the krosa (cry, or cow-call) and the yojana (stage). The common cubit was the length of the forearm from the elbow to the tip of the middle finger.
Ancient methods of measuring hours in the absence of sunlight included fire clocks, such as the notched candle and the Chinese practice of burning a knotted rope. All fire clocks were of a measured size to approximate the passage of time, noting the length of time required for fire to travel from one knot to the next.Protractors, which are semi-circular measurement tools, were used in ancient times to measure angles between two intersecting lines. There is little difference between what they looked like then and now. The semi-circular tool is marked with angle measurements from 0 to 180 degrees. Protractors first were identified as being used in the 1600s.
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