You know what it looks like… but what is it called?
TAKE THE QUIZ“Wimshurst”
We have one entry that includes the term Wimshurst.
Wimshurst machine
noun: an electric machine of the induction type having two closely parallel glass plates revolving in opposite directions and bearing a set of metal carriers corresponding pairs of which on the two plates act momentarily as small electrophorus elements and usually being provided with Leyden jars for storing the accumulated charges
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Merriam-Webster unabridged