The Man Who Invented The Telephone Was A Secret Speed Freak

On February 14th, 1876, Alexander Graham Bell got his name put in the history books when he beat fellow inventor Elisha Gray to the patent office with his new creation, the telephone. And while the telephone's importance to humanity is neat, it's not exactly Bell's most adrenaline-pumping idea. For that, you need… » 1/18/14 4:08pm 1/18/14 4:08pm

A 1944 Electromagnetic Radiation Poster Makes Learning Retro Chic

There are lots of interactions and fields around us all the time that we can't see. Like gravity. We can always count on gravity to be there when we trip and face plant. And we interact with all different frequencies on the spectrum of electromagnetic radiation every day, which is usually fine and sometimes deadly.… » 8/04/13 1:31pm 8/04/13 1:31pm