Physics Facts

48 facts, from the everyday to the astonishing.

Most ancient civilizations were aware of the magnetic phenomenon. Sailors in the late thirteenth century used magnetized…

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…

There are two main ways to make light. In incandescence , something is heated until it glows, like the filament of an…

Give a plastic bucket and a shovel to a child, then turn her loose on a beach full of sand. She'll happily toil the day…

All Physics facts