How do you learn to solve a Rubik’s Cube? Back in the dawn of twisty-puzzle time the answer was “You Can Do The Cube”, a book that sold over 1.5 million copies in 1981. Today, with a wide range of ...
Symmetry is everywhere in our natural world. Just take a look at your hands, a butterfly, or a sunflower. It’s easy to pass off the idea of symmetry and symmetric structures as a simple quirk of ...