(thing) by Noether Wed Aug 16 2000 at 12:13:18
This conchoid was invented by abbot René de Sluze in 1662. Fix two real number constants. Then the curve is given by the equation

a(x-a)(x2 + y2) = b2x2.

Facts sourced from http://www-groups.dcs.st-andrews.ac.uk/~history/
I like it!

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