pendulum gravity instrument

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• Pendulum — This article is about pendulums. For other uses, see Pendulum (disambiguation). Simple gravity pendulum model assumes no friction or air resistance …   Wikipedia

• pendulum — Hydrometer Hy*drom e*ter, n. [Hydro , 1 + meter: cf. F. hydrom[ e]tre.] 1. (Physics) An instrument for determining the specific gravities of liquids, and thence the strength spirituous liquors, saline solutions, etc. [1913 Webster] Note: It is… …   The Collaborative International Dictionary of English

• Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea …   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 Physics —     History of Physics     † Catholic Encyclopedia ► History of Physics     The subject will be treated under the following heads: I. A Glance at Ancient Physics; II. Science and Early Christian Scholars; III. A Glance at Arabian Physics; IV.… …   Catholic encyclopedia

• Theory of impetus — The theory of impetus was an antiquated auxiliary or secondary theory of Aristotelian dynamics, put forth initially to explain projectile motion against gravity. It was first introduced by Hipparchus in antiquity, and subsequently further… …   Wikipedia

• Timeline of Islamic science and engineering — This timeline of Islamic science and engineering covers the general development of science and technology in the Islamic world during the Islamic Golden Age, usually dated from the 7th to 16th centuries.From the 17th century onwards, the advances …   Wikipedia

• Christiaan Huygens — Born 14 April 1629 …   Wikipedia

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

• seismograph — seismographic /suyz meuh graf ik, suys /, seismographical, adj. /suyz meuh graf , grahf , suys /, n. any of various instruments for measuring and recording the vibrations of earthquakes. [1855 60; SEISMO + GRAPH] * * * Introduction… …   Universalium

• earthquake — /errth kwayk /, n. 1. a series of vibrations induced in the earth s crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating. 2. something that is severely disruptive; upheaval. [1300 50; ME erthequake …   Universalium