Tribar
An Impossible Figure published by R. Penrose (1958). It also exists as a Tribox.
References
Draper, S. W. ``The Penrose Triangle and a Family of Related Figures.'' Perception 7, 283-296, 1978. Fineman, M. The Nature of Visual Illusion. New York: Dover, p. 119, 1996. Jablan, S. ``Set of Modular Elements `Space Tiles'.'' http://members.tripod.com/~modularity/space.htm. Pappas, T. ``The Impossible Tribar.'' The Joy of Mathematics. San Carlos, CA: Wide World Publ./Tetra, p. 13, 1989. Penrose, R. ``Impossible Objects: A Special Type of Visual Illusion.'' Brit. J. Psychology 49, 31-33, 1958.
- Genocchi Number
- Gentle Diagonal
- Gentle Giant Group
- Genus (Curve)
- Genus (Knot)
- Genus (Surface)
- Genus Theorem
- Geocentric Latitude
- Geodesic
- Geodesic Curvature
- Geodesic Dome
- Geodesic Equation
- Geodesic Flow
- Geodesic Triangle
- Geodetic Latitude
- Geographic Latitude
- Geometric Construction
- Geometric Distribution
- Geometric Mean
- Geometric Mean Index
- Geometric Probability Constants
- Geometric Problems of Antiquity
- Geometric Progression
- Geometric Sequence
- Geometric Series