No matter how fast you move, the light will always catch you. Nowadays we take the speed of light for granted. It's a fundamental constant of the universe: light simply travels at the speed it does ...

You can use chocolate, cheese, or even marshmallows to microwave at the speed of light. Your microwave has its wavelength listed somewhere, and it's easy to multiply the rest. Also, you can still eat ...

The motion of any object is relative. On Earth we tend to ignore that, because the vast background of the ground gives us a seemingly fixed and absolute frame of reference. Sitting comfortably at our ...