Odometer
*** Relevant Background: " An odometer or odograph is an instrument used for measuring the distance traveled by a vehicle, such as a bicycle or car. The device may be electronic, mechanical, or a combination of the two ( electromechanical ). The noun derives from ancient Greek ὁδόμετρον , hodómetron , from ὁδός , hodós ("path" or "gateway") and μέτρον , métron ("measure"). Early forms of the odometer existed in the ancient Greco-Roman world as well as in ancient China . In countries using Imperial units or US customary units it is sometimes called a mileometer or milometer , the former name especially being prevalent in the United Kingdom and among members of the Commonwealth .. Most modern cars include a trip meter ( trip odometer ). Unlike the odometer, a trip meter is reset at any point in a ...