A Powerful New ‘QR Code’ Untangles Math’s Knottiest Knots Introduction From the tangle in your computer cord to the mess your cat made of your knitting basket, knots are everywhere in daily life. They also pervade science, showing up in loops of DNA, inte... See more
First Shape Found That Can’t Pass Through Itself
Introduction
Imagine you’re holding two equal-size dice. Is it possible to bore a tunnel through one die that’s big enough for the other to slide through?
Perhaps your instinct is to say “Surely not!” If so... See more
First Shape Found That Can’t Pass Through Itself
Imagine you’re holding two equal-size dice. Is it possible to bore a tunnel through one die that’s big enough for the other to slide through?
Perhaps your instinct is to say “Surely not!” If so, you’re not ... See more
