The Sydler π/4 polyhedron. The shape that should be impossible.
15
votes
-
-
Bizarre traveling flame discovery
11 votes -
Scientists studied how cicadas pee. Their insights could shed light on fluid dynamics.
7 votes -
Turning milk into clothing
8 votes -
Steffen's polyhedron is a flexible concave polyhedron. Euler thought such a shape was impossible. I also show infinitesimally flexible polyhedrons and bistable polyhedrons.
13 votes -
Getting an odd number of cogs in a loop to turn
7 votes -
Scientists are 3D printing miniature human organs to test coronavirus drugs
5 votes -
ETH researchers used a 3D printing process to produce complex and highly porous glass objects
5 votes -
How 3D printing could help shape surgery
5 votes -
Cat tongue spines help smear saliva and inspire new 3D-printed brush
4 votes