出典:Wikipedia
出典:『Wikipedia』 (2011/02/22 18:58 UTC 版)
An oloid is a geometric object that was discovered by Paul Schatz (1898–1979) in 1929. It is formed by taking the convex hull of the shape made by intersecting two disks of equal radius at right angles within one another, with the distance between the centers of the disks equal to their radius. The resulting convex hull is an oloid.