wheel-counting device

См. также в других словарях:

• Surveyor's wheel — A surveyor s wheel, also called a clickwheel, hodometer, waywiser or perambulator is a device for measuring distance.OriginThe origins of the surveyor s wheel are connected to the origins of the odometer. While the latter is derived to measure… …   Wikipedia

• Mechanical calculator — An old Russian mechanical calculator. A mechanical calculator is a device used to perform the basic operations of arithmetic. Mechanical calculators are comparable in size to small desktop computers and have been rendered obsolete by the advent… …   Wikipedia

• C. E. Wynn-Williams — Charles Eryl Wynn Williams Born 5 March 1903 Glasfryn, Uplands, Swansea Died 30 August 1979(1979 08 30) (aged 76) Bryn Elmen, Dolybont, Borth, Cardiganshire Nationality British …   Wikipedia

• Roman technology — is the engineering practice which supported Roman civilization and made the expansion of Roman commerce and Roman military possible over nearly a thousand years. The Roman Empire had the most advanced set of technology of their time, some of… …   Wikipedia

• Advanced Camera for Surveys — The Advanced Camera for Surveys (ACS) is a third generation axial instrument aboard the Hubble Space Telescope (HST). The initial design and scientific capabilities of ACS were defined by a team based at Johns Hopkins University. ACS was… …   Wikipedia

• Odometer — An odometer or odograph[1][2] is an instrument that indicates distance traveled by a vehicle, such as a bicycle or automobile. The device may be electronic, mechanical, or a combination of the two. The word derives from the Greek words hodós (… …   Wikipedia

• List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …   Wikipedia

• Escapement — redirects here. For the fisheries term for the stock surviving fishing pressures over a spawning cycle, see Spawn (biology). For other uses, see Escapement (disambiguation). A deadbeat escapement, used in many pendulum clocks. Click above to see… …   Wikipedia

• Clock — For other uses, see Clock (disambiguation). Timepiece redirects here. For the Kenny Rogers album, see Timepiece (album). Platform clock at King s Cross railway station, London …   Wikipedia

• clock — clock1 /klok/, n. 1. an instrument for measuring and recording time, esp. by mechanical means, usually with hands or changing numbers to indicate the hour and minute: not designed to be worn or carried about. 2. See time clock. 3. a meter or… …   Universalium

• Striking clock — The Clock Tower of the Palace of Westminster in London, commonly referred to as Big Ben, is a famous striking clock. A striking clock is a clock that sounds the hours audibly on a bell or gong. In 12 hour striking, used most commonly in striking… …   Wikipedia