TORSION BALANCE • DICTIONARY ONE.COM • Definition of Torsion balance

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/tˈɔrʃən bˈæləns/ Listen

noun

Torsion n.

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.

(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.

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Etymology of 'Torsion balance'

Collaborative International Dictionary of English 0.48

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"Torsion balance" Quotes from Famous Books

... Coulomb's torsion balance has been adapted by M. Baille to the measurement of low electromotive forces in a very successful manner, and has been found preferable by him to the delicate electrometers of Sir W. Thomson. It is necessary to ...

— Scientific American Supplement No. 275 • Various