Alright, here come my clickbait titles:

😺🔍 “If you’ve ever wanted to know what’s inside a cat…”

or

🧑‍🏫👶 “What do mathematicians say when asked: ‘Mom/Dad, what do you actually do all day?’”

#tetrahedron #wonderful

https://www.quantamagazine.org/a-new-pyramid-like-shape-always-lands-the-same-side-up-20250625/

A New Pyramid-Like Shape Always Lands the Same Side Up | Quanta Magazine

A tetrahedron is the simplest Platonic solid. Mathematicians have now made one that’s stable only on one side, confirming a decades-old conjecture.

Quanta Magazine