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Our World
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Demonstrations 21  40 of 876
Universal Sundial
Solar System Mandalas
Simulation of a Turing Machine
Paper Clip
Calculating the Earth's Circumference at Any Date from Any Location
Mercury's Perihelion Precession
Cutting a Key for a Cylinder Lock
Projecting a Circle on a Sphere to an Enclosing Cylinder
Cryptic Crosswords
Folding a Strip to Converge to an Equilateral Triangle
Descartes's Geometric Solution of a Quadratic Equation
Balancing a Can on Its Edge
Probabilistic Models for Robot Motion
The Integraph: An Integrating Mechanism
General Assembly Resolution Viewer
Arbitrary Curves of Constant Width
Active Shock Absorbers
Simpson's Paradox
Projections of Cubes and HalfCubes
Calendar on Dodecahedron
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