Dierck-Ekkehard Liebscher
Relativity, geometry, and cosmology in pictures
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Gesamtschau
Distances
Reflections
Projective geometry
Conics
Minkowski
Lobachevski
Curvature
Michelson
Space-time
Special relativity
Try it yourself relativity
Mass and energy
Gravitation
Cosmology
Cosmic nucleosynthesis
Cosmic structure
Cosmic vacuum
Cosmic pinpoints
Time and entropy
Quantum physics
Physics supplement
Paper polyhedra
Geometry of distances in pictures
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Geometry of reflections
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Projective geometry in pictures
Perspective
Dürer
Cross ratio (Doppelverhältnis)
Complete quadrangle (Vollständiges Viereck)
Polarity
Lense map
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Conics in pictures
Pascal and Brianchon
Foci
Three focus-sharing conics
Three asymptote-sharing conics
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Minkowski geometry (pseudoeuclidean geometry) in pictures
Pythagore in Minkowski space-time
Feuerbach-Kreis
Dreiteilung des Winkels
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Non-euclidean (Lobachevski) geometry in pictures
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Curvature in pictures
Curvature of space
The south-pointing chariot (Zhi nan che)
Curvature of space-time
Curvature of the universe: Mercator maps
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Michelson experiment in pictures
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Space-time in pictures
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