length contraction

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• Length contraction — Length contraction, according to Hendrik Lorentz, is the physical phenomenon of a decrease in length detected by an observer in objects that travel at any non zero velocity relative to that observer. This contraction (more formally called Lorentz …   Wikipedia

• contraction — 1. A shortening or increase in tension; denoting the normal function of muscle. 2. A shrinkage or reduction in size. 3. Heart beat, as in premature c..beat. [L. contractus, drawn together] after c …   Medical dictionary

• Proper length — In relativistic physics, proper length is an invariant quantity which is the rod distance between spacelike events in a frame of reference in which the events are simultaneous. (Unlike classical mechanics, simultaneity is relative in relativity.… …   Wikipedia

• Muscle contraction — See also: Twitch and Tremor Top down view of skeletal muscle Muscle fiber generates tension through the action of actin and myosin cross bridge cycling. While under tension, the muscle may lengthen, shorten, or …   Wikipedia

• Lorentz-Fitzgerald contraction — /ˌlɒrənts fɪtsˈdʒɛrəld kənˌtrækʃən/ (say .loruhnts fits jeruhld kuhn.trakshuhn) noun the hypothetical contraction in length in the direction of movement which bodies at high velocity suffer, shown to be demonstrable in terms of the relativity… …  

• Lorentz-Fitzgerald contraction — noun the decrease in length of a moving object in the direction of motion; measurable only at relativistic speeds …   Wiktionary

• lengthcontraction — length contraction n. See Lorentz FitzGerald contraction. * * * …   Universalium

• Introduction to special relativity — In physics, special relativity is a fundamental theory about space and time, developed by Albert Einstein in 1905 [ On the Electrodynamics of Moving Bodies . (fourmilab.ch web site): [http://www.fourmilab.ch/etexts/einstein/specrel/www/… …   Wikipedia

• History of special relativity — The History of special relativity consists of many theoretical and empirical results of physicists like Hendrik Lorentz and Henri Poincaré, which culminated in the theory of special relativity proposed by Albert Einstein, and subsequent work of… …   Wikipedia

• Michelson–Morley experiment — Box plots based on data from the Michelson–Morley experiment The Michelson–Morley experiment was performed in 1887 by Albert Michelson and Edward Morley at what is now Case Western Reserve University in Cleveland, Ohio. Its results are generally… …   Wikipedia

• Ladder paradox — The ladder paradox (or barn pole paradox) is a thought experiment in special relativity. If a ladder travels horizontally it will undergo a length contraction and will therefore fit into a garage that is shorter than the ladder s length at rest.… …   Wikipedia