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The odometer was also independently invented in ancient China, [3] possibly by the prolific inventor and early scientist Zhang Heng (78 AD – 139 AD) of the Han dynasty. By the 3rd century (during the Three Kingdoms Period), the Chinese had termed the device as the 'jì lĭ gŭ chē' (記里鼓車), or ' li -recording drum carriage' (Note: the ...
Bematist (Ancient Greek: βηματιστής), plural bematists or bematistae (Ancient Greek: βηματισταί), meaning 'step measurer' (from βῆμα (bema), meaning 'pace'), were specialists in ancient Greece and ancient Egypt who measured distances by pacing. [1]
An Ancient Egyptian sundial (Rijksmuseum van Oudheden) Vrihat Samrat Yantra, 88 feet (27 m) tall sundial at the Jantar Mantar in Jaipur Built in 1727. The first devices used for measuring the position of the Sun were shadow clocks, which later developed into the sundial.
An odometer for measuring distance was first described by Vitruvius around 27 and 23 BC, although the actual inventor may have been Archimedes of Syracuse (c. 287 BC – c. 212 BC). It was based on chariot wheels turning 400 times in one Roman mile. For each revolution a pin on the axle engaged a 400 tooth cogwheel, thus turning it one complete ...
The origins of the surveyor's wheel are connected to the origins of the odometer. While the latter is derived to measure distances travelled by a vehicle, the former is specialized to measure distances. In the 17th century, the surveyor's wheel was re-introduced and used to measure distances.
A machine commonly displayed as Clayton's odometer is actually one built in 1876 by Thomas G. Lowe. Lowe created his odometer to calculate the distance between villages in northern Arizona. He gave his odometer to the Deseret Museum in Salt Lake City, and it was on display with accurate information from 1876 until it closed for a period in 1903 ...
Roadometer may mean: Roadometer (odometer), an early device like an odometer for measuring mileage, towed by a wagon, invented in 1847, by William Clayton, a Mormon pioneer. A type of Drivotrainer, one of these was called a Roadometer
Five digit odometer of a Citroën Acadiane, 1986. Odometry is the use of data from motion sensors to estimate change in position over time. It is used in robotics by some legged or wheeled robots to estimate their position relative to a starting location. This method is sensitive to errors due to the integration of velocity measurements over ...