Physics Facts

48 facts, from the everyday to the astonishing.

Did you know that gravity is the weakest force in the universe? It's true! Physicists know of four fundamental forces:…

Determining the age of relatively recent fossils, those of plants and animals that lived tens of thousands of years ago,…

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…

In the first few millionths of the second after the Big Bang, the universe looked very different than today. In fact the…

All Physics facts