| Part one of a four part series on the fundamental forces (or interactions) of physics begins with the strong force or strong interaction - which on the small scale holds quarks together to form protons, neutrons and other hadron particles. Like SciShow on Facebook: www.facebook.com Follow SciShow on Twitter: www.twitter.com physics, fundamental forces, fundamental interaction, strong force, 4ff, scishow, science, atoms, nucleus, protons, neutrons, hadrons, quarks, leptons, electrons, color, colorless, color force, gluons, force carrier, nuclear force, strong interaction |