Physics Valentines

In love? Or just the opposite? Express how you feel with physics-inspired Valentines—and anti-Valentines—courtesy of symmetry. In the spirit of the approaching holiday, the staff of symmetry has created a set of physics-themed Valentines for you to share with the people who give you warmth and happiness. And—because we live in a universe that contains both matter and antimatter—we have also created a set of physics-themed anti-Valentines for you to share with the people who don't. (Mous...