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Izidor Hafner
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Demonstrations 81  100 of 669
The Four KeplerPoinsot Solids
Kepler's Rhombic Solids
Construct Euclid's Regular Dodecahedron
The Journey of Speke and Grant
Euler's Substitutions for the Integral of a Particular Function
Opposite Coefficients Method for Solving Two Equations in Two Unknowns
Some Unistable Polyhedra
Solving a System of Two Linear Equations with Substitution
Icosahedral Rotational Symmetry Types
Octahedral Rotational Symmetry Types
Mazes on the Edges of a Polyhedron
Stanley's Congo Expedition
Constructing the Radius of a Ball
Wunderlich's Bistable Octahedron
Gardner's Problem
Steffen's Flexible Polyhedron
HouseLike Solids from Kindergarten Blocks
Polyhedral Maps
Integrating a Rational Function with a Cubic Denominator with One Real Root
Dissecting a Rhombic Dodecahedron of the Second Kind to Half a Cube
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