The oloid is an intriguing geometric shape with some fascinating mathematical properties...
The oloid is a three-dimensional geometric shape that was invented by German mathematician Paul Schatz in 1929. It is formed by two identical disks that are perpendicular to each other, with their centers connected by a curved surface. The oloid has the unique property of being able to roll smoothly on any surface, and it does so without changing its orientation. Although it is not round, it rolls and does so in a very interesting way - so that every point of its surface touches the ground.
It is sometimes used in engineering and design applications due to its unusual rolling properties. It has also been used in art and sculpture, and it is considered a symbol of harmony and balance due to its geometric properties.