parabola envelope
supertrammel
Parabola and catenary
Ellipse as locus of circle center
proof without words
Circle of Curvature
Coffee Cup Caustic
Polar Line
Hyperbola Polar Line
Parabola Polar Line
Polar Point Ellipse
Polar Point Parabola
Scotch Yoke
Scotch Yoke with Parameters
Derivative
Ellipse Incenter Locus
Euclid 1:47
Circle Equation
Parabola Directrix
Focus Directrix Parabola
Pirate Treasure
Ellipse Directrix
Elliptical clock
Equilateral triangle construction
pool construction
Tilted clock
cosine rule test
Hyperbolic clock
hyperbolic clock with explanation
Parabola string art
Pappus Chain
Cycloid Clock
