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Izidor Hafner
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Demonstrations 61  80 of 1267
Vega's Tables of Common Logarithms to Seven Decimals
Vega's 1794 Table of Common Logarithms
Reconstruction of de DeckerVlacq's 1628 Table of Common Logarithms
Golden Rhomboidal Dodecahedron
Filling Space with a Bilinski Dodecahedron and an Acute Golden Rhombohedron
Venn Diagrams with Four Ellipses
Symmetric Decompositions of a Rhombic Triacontahedron
Kowalewski's Games with Kepler's Solid
Constructions by Reflecting in a Line
Dissecting a Cube into an H Shape and Two Cubes
Towers Puzzle
Polar Maze
Dissecting an Acute Golden Rhombohedron into a Rectangular Solid
Two Dissections of a Golden Rhombohedron into OneHalf of a Bilinski Dodecahedron
Dissecting Five Cubes into a Rectangular Solid with a Square Base
Dissecting a Rectangular Solid into an Acute Golden Rhombohedron and Half a Bilinski Dodecahedron
Polyhedral Lamps
Folding Nets of Polyhedra with Subdivided Faces
Families of FourPoint Touching Isosceles Triangles
2. Families of FourPoint Touching Squares
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