For decades, Deborah Willis has dedicated her career to unearthing, cataloging and showcasing Black photographers and photographs of Black people. The MacArthur "Genius Award" winner is the author of ...

Introduction Can you imagine a bouncy ball that could bounce back and forth between two walls, infinitely—that is, forever? Wouldn't that be amazing? What if, instead of a ball, light was bouncing ...

Infinite mirrors are a fun party trick, but the physics behind this phenomenon explains why it may not be true. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...