“I do not call my art ‘mathematical art,’” Dr. Roelofs said in a video interview about a week later. “It’s art about mathematics. Every artist has a favorite subject, things you want to talk about.

In the vast world of geometry and art, there are figures that challenge our perception and understanding of space. One of these figures is the Penrose Triangle, also known as the Tribar. This object, ...

When it comes to good YouTube videos, I’m biased in favor of content made explicitly for the platform: media critiques, long-form investigations, and pointless tests of human endurance. “Outside In” ...