![]() ![]() If we are successful, the theory of quantum gravity will encompass all others, from classical physics to relativity to quantum mechanics-truly a Theory of Everything (TOE). A good theory of quantum gravity does not yet exist, but one will be needed to understand how all four forces may be unified. Quantum gravity is the theory that deals with particle exchange of gravitons as the mechanism for the force, and with extreme conditions where quantum mechanics and general relativity must both be used. Many aspects of general relativity have been verified experimentally, some of which are better than science fiction in that they are bizarre but true. General relativity encompasses special relativity and classical relativity in situations where acceleration is zero and relative velocity is small compared with the speed of light. Einstein’s theory of general relativity describes all types of relative motion including accelerated motion and the effects of gravity. We know from Special Relativity that relativity is the study of how different observers measure the same event, particularly if they move relative to one another. When we talk of black holes or the unification of forces, we are actually discussing aspects of general relativity and quantum gravity. Explain the effect of gravity on light.By the end of this section, you will be able to: ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |