Relativity vs Gravitons – Which is the right theory of gravity?
Physicists have found that the concept of symmetry seems to recur repeatedly within theoretical physics. There exists a lot of evidence to suggest that four forces govern nature. These forces are the weak and strong nuclear forces and the more familiar electromagnetic and gravitational forces. The short-ranged weak nuclear force is exchanged by massive gauge bosons (the W+ or W- or Z0). It is the weak nuclear force that is responsible for radioactive decay (flavour changing of the quarks) and weak neutral currents (momentum and spin changes). The strong nuclear force binds the quarks into the nucleons via the exchange of a colour force carried by eight, mass-less vector gauge bosons or gluons. It is the strong nuclear force that holds together protons, neutrons, and mesons, or hadrons but in its residual form, this force also binds together nuclei made up of protons and neutrons. The strong nuclear force is 100 times the strength of the electromagnetic force, some 10¹³ times as great a
