- half-second pendulum
- полусекундный маятник
English-russian dictionary of physics. 2013.
English-russian dictionary of physics. 2013.
Pendulum — This article is about pendulums. For other uses, see Pendulum (disambiguation). Simple gravity pendulum model assumes no friction or air resistance … Wikipedia
Second Battle of El Alamein — Part of Western Desert Campaign … Wikipedia
Second — This article is about the unit of time. For other uses, see Second (disambiguation). A light flashing approximately once per second. The second (SI unit symbol: s; informal abbreviation: sec) is a unit of measurement of time, and is the… … Wikipedia
The Pit and the Pendulum (1961 film) — Infobox Film name = The Pit and the Pendulum image size = caption = Original 1961 theatrical release poster by Reynold Brown director = Roger Corman producer = Roger Corman James H. Nicholson (Exec Prod) Samuel Z. Arkoff (Exec Prod) writer =… … Wikipedia
Ballistic pendulum — A ballistic pendulum is a device for measuring a bullet s momentum, from which it is possible to calculate the velocity and kinetic energy. Ballistic pendulums have been largely rendered obsolete by modern chronographs, which allow direct… … Wikipedia
gravitation — gravitational, adj. gravitationally, adv. /grav i tay sheuhn/, n. 1. Physics. a. the force of attraction between any two masses. Cf. law of gravitation. b. an act or process caused by this force. 2. a sinking or falling … Universalium
History of timekeeping devices — For thousands of years, devices have been used to measure and keep track of time. The current sexagesimal system of time measurement dates to approximately 2000 BC, in Sumer. The Ancient Egyptians divided the day into two 12 hour periods, and… … Wikipedia
Tropical year — A tropical year (also known as a solar year), for general purposes, is the length of time that the Sun takes to return to the same position in the cycle of seasons, as seen from Earth; for example, the time from vernal equinox to vernal equinox,… … Wikipedia
Tredegar — infobox UK place country = Wales static static image caption=The Town Clock [ [http://www.geograph.org.uk/photo/166273 image from Geograph] , accessed 21 July 2008] welsh name= constituency welsh assembly= map type= official name= Tredegar… … 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
mechanics — /meuh kan iks/, n. 1. (used with a sing. v.) the branch of physics that deals with the action of forces on bodies and with motion, comprised of kinetics, statics, and kinematics. 2. (used with a sing. v.) the theoretical and practical application … Universalium