The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...

The weak nuclear force doesn't play by the normal rules — and, in fact, it breaks one of the biggest rules of all. When you purchase through links on our site, we may earn an affiliate commission.

The proton, one of the fundamental building blocks of matter, has been sent through the looking glass. For the first time, physicists have measured how it is affected by the weak force, the only ...