Parabolic Reflector
Locus of intersection of reflected rays
Reflection of parallel rays
Pedal Triangles
Circle in a trapezoid
Rotating Cube
Crazy Clock
Parabolic Solar Cooker
Steiner Ellipses
Circle Involute
Cam with reciprocating roller follower
Tangential Circles
Crank Slider
Golden Section Construction
Spline Approximation
Trammel foci
Inverted Trammel
Inverted Trammel 2
Four Bar Linkage
Tangrams
Moving point
Golden Ratio
trapezoid field
watts up
Dilation
Parabola Property
Parabola Subnormal
Parabola Tangent Circumcircle
Parabola Parametrization
Tchirnhausen's Cubic
Ellipse Parametrization
Tangent Triangle
