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Roget's spiral
noun
Ro·get's spiral
\(ˈ)rō¦|zhāz-, ˈräˈ|\
Definition of Roget's spiral
: an open helix of elastic wire that contracts in length when an electric current passes through it and thereby demonstrates the attraction of parallel currents
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Origin and Etymology of roget's spiral
after Peter M. Roget †1869 English physician
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