Wheatstones rods

Wheat"stone's rods

. (Acoustics) Flexible rods the period of vibration of which in two planes at right angles are in some exact ratio to one another. When one end of such a rod is fixed, the free end describes in vibrating the corresponding Lissajous figure. So called because devised by Sir Charles Wheatstone.
[Webster 1913 Suppl.]

 

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Sat 15th December 2018