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:…

The AM radio dial would be nothing but chaos and noise without a very basic rule - turn down the power at night. The…

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

You may not be aware of it, but when you look at the world, the image projected on your retina is upside down. This is…

All Physics facts