Dazzle your Valentine with brilliance, even if you don't understand it. Windell Oskay and Lenore Edman at Evil Mad Scientist Laboratories are offering free downloadable Valentines, as they do every year, with six new and extremely geeky math and physics messages to add to the Valentines they've offered in years past.
This year’s set features parallel lines, friction, and activation energy:
What could be more romantic than telling someone that the second derivative of your potential energy is at its minimum when you’re around them?
Check out the new Valentines at Evil Mad Scientist. Download all 36 designs here. A word to the wise: you might want to look up what they mean before giving them. -via Geeks Are Sexy