What is the Strong force and the Weak force, exactly?
The four forces of nature order as follows (strongest first): – 1. Nuclear strong force relative strength 10^38 range 10^-15 m 2. Electromagnetism relative strength 10^36 range infinite. 3. Nuclear weak relative strength 10^25 range 10^-18 m 4. Gravity relative strength 1 range infinite The strong interaction, or strong nuclear force, is the most complicated interaction, mainly because of the way it varies with distance. At distances greater than 10 femtometers, the strong force is practically unobservable. Moreover, it holds only inside the nucleus. Murray Gell-Mann along with George Zweig first proposed fractionally charged quarks in 1961. Throughout the 1960s, different authors considered theories similar to the modern fundamental theory of QCD as simple models for the interactions of quarks. The first to hypothesize the gluons of QCD were Moo-Young Han and Yoichiro Nambu, who introduced the quark color charge and hypothesized that it might be associated with a force-carrying field.
