Roget's spiral
noun
Ro·get's spiral
(ˈ)rō¦|zhāz-,
ˈräˈ|
: 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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“Roget's spiral.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Roget%27s%20spiral. Accessed 30 Nov. 2024.
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