Did you know you've been cooking your food with light? Most of us have a microwave oven in our kitchens, and that's exactly what they do. When you press start, a device called a magnetron emits a ...

Add Yahoo as a preferred source to see more of our stories on Google. The universe has a speed limit, and it's the speed of light. Nothing can travel faster than light — not even our best spacecraft — ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...