An oloid is a geometric shape discovered by Paul Schatz in 1929, formed by connecting two circular disks at its edges at right angles. Its unique rolling motion is fascinating, combining oscillation with smooth rolling to produce a result that is both satisfying and intriguing. The way an oloid rolls ensures that every point on its surface comes into contact with the ground at some point during movement, making it a space-filling shape. Composed of two circles and capable of rolling smoothly, it has attracted significant attention in both mathematics and art. The combination of its simple design and complex motion highlights the elegance of geometric principles in movement.

Dimensions: about 5 centimeters tall

There’s even an interesting song about Oloid.song!