Friction Without Contact: Or, How Physics Just Side-Eyed 300 Years of “Obvious Truths”
There are few things scientists love more than a law that feels permanent. Not legally permanent—no, no, that would require Congress—but the kind of permanent that sits comfortably in textbooks, quietly shaping how generations of students imagine the world works. Friction, for example. That old, dependable concept. The thing you learned in middle school when someone dragged a block across a table and said, “See? That’s friction.” Simple. Intuitive. Comforting. Friction requires contact. Two surfaces rub together. Energy is lost. Heat is generated. Things slow down. The universe makes sense again. Except… now it doesn’t. Because researchers have decided—very rudely, I might add—that friction can happen without contact . That’s right. No touching. No rubbing. No surfaces grinding together like a stressed-out grad student’s teeth. Just… forces. Invisible ones. Magnetic ones. Doing friction-like things while staying socially distant. And just like that, a 300-year-old assumption—the ...