Physics Facts

48 facts, from the everyday to the astonishing.

Radiofrequency (RF) energy is another name for radio waves. It is one form of electromagnetic energy that makes up the…

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

Quarks are the most fundamental particles that we know of. Both protons and neutrons are made of quarks. We know quarks…

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

All Physics facts