Physics Facts

48 facts, from the everyday to the astonishing.

Light is a fascinating thing. Or things, as the case may be. Electromagnetic energy that our eyes have developed to see,…

Mach 1 is the speed of sound. A Mach number is simply the ratio of an object's speed to the speed of sound in the air…

Have you ever wondered why astronauts float in space? Well, it isn't because there is no gravity in space. Astronauts…

Did you know that no two people ever see the very same rainbow? It's true. Rainbows are formed when light enters a water…

All Physics facts