Pendulum Wave Demonstration
Common Mythconceptions - World's Most Contagious Falsehoods...
Download Graphic Images from the Hillis/Bull Lab
He's probably had a colorful past, as well.
Infographic: 50 Unbelievable Facts About Earth
This infographic contains 50 fascinating facts about Earth. 40 million tons of dust sweep from the Sahara to the Amazon every year?