From Simons Science News (find original story here).

The Menger Sponge, a well-studied fractal, was first described in the 1920s. The fractal is cube-like, yet its cross section is quite surprising. What happens when it is sliced on a diagonal plane? Try to predict the solution to the puzzle proposed in this video.


The Menger Sponge (Wikipedia page)

Photo by Sébastien Pérez-Duarte


More videos from the Mathematical Impressions series.