Today's everyone's favorite calendar phenomenon—but why exactly do we leap?
By Matt Ransford
Posted 02.29.2008 at 12:37 pm 3 Comments
Leap Year: Mouse-ear/iStockphoto
Happy Leap Year Day! Today is February 29th, the hanger-on day we get at the end of February every four years. Everybody knows it eventually comes around and most of us learned the thirty days hath September rhyme in school. But we could probably use a refresher on why exactly it shows up. Let's take a look.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.