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Torsion   /tˈɔrʃən/   Listen
noun
Torsion  n.  
1.
The act of turning or twisting, or the state of being twisted; the twisting or wrenching of a body by the exertion of a lateral force tending to turn one end or part of it about a longitudinal axis, while the other is held fast or turned in the opposite direction.
2.
(Mech.) That force with which a thread, wire, or rod of any material, returns, or tends to return, to a state of rest after it has been twisted; torsibility.
Angle of torsion (of a curve) (Geom.), the indefinitely small angle between two consecutive osculating planes of a curve of double curvature.
Moment of torsion (Mech.) the moment of a pair of equal and opposite couples which tend to twist a body.
Torsion balance (Physics.), an instrument for estimating very minute forces, as electric or magnetic attractions and repulsions, by the torsion of a very slender wire or fiber having at its lower extremity a horizontal bar or needle, upon which the forces act.
Torsion scale, a scale for weighing in which the fulcra of the levers or beams are strained wires or strips acting by torsion.





Collaborative International Dictionary of English 0.48


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"Torsion" Quotes from Famous Books



... Blaine Asher closely, expecting to see the chief geologist and scientist of the company laugh. But Blaine Asher did not laugh. Serious, his rather thin face grave at he leaned his tall, muscular body above a torsion machine he was adjusting, there was nothing to indicate he had the faintest idea of ...
— Astounding Stories of Super-Science, June, 1930 • Various
... knob. The apparatus was virtually a Leyden jar, the two coatings of which were the two spheres, with a thick and variable insulator between them. The amount of charge in each jar was determined by bringing a proof-plane into contact with its knob and measuring by a torsion balance the charge taken away. He first charged one of his instruments, and then dividing the charge with the other, found that when air intervened in both cases the charge was equally divided. But when shellac, sulphur, or spermaceti ...
— Faraday As A Discoverer • John Tyndall
... origin; while the thin continuous lines represent the changing direction of strike of the Palozoic rocks which surround the Mino-Owari plain, and the arrowheads the direction of the dip. It will be seen that the direction of the strike forms an S-shaped curve, and it is clear that the present torsion-structure of the district could not have been produced without the formation of many fractures at right angles and parallel to the lines of strike. Professor Koto points out that the regular and parallel valleys of the rivers ...
— A Study of Recent Earthquakes • Charles Davison


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