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Demonstrations 1  20 of 8175
Negative Disk Magnifier Illusion
The Seven Bridges of Königsberg
Equal Cores and Shells in Circles and Spheres
An Example of the BolyaiGerwien Theorem
Lagrange's FourSquare Theorem Seen Using Polygons and Lines
Eccentric Chuck
Three Equal Segments from the Altitudes of a Triangle
Ratios Involving Six Radii
Circumcircles of Two Midpoints and an Altitude
Random Domino Tilings
Electronic Structure of 1D and 2D Quasiperiodic Systems
Parking a Car
The Path of the Rear Wheels of a Bus
Bisecting the Area and Perimeter of a Triangle
Bisecting a Triangle
Three Circles with Two Common Tangents
Reflections of a Line through the Orthocenter in the Sides of an Acute Triangle
Squares on a Line Segment
Ada Deitz Polynomials for Handwoven Textiles
Vega's Calculation of Pi
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