21. The more usual sense of nonlinearity in classical physics remains unchanged in quantum mechanics. 22. Thus, quantum spin tunneling provides a pathway to magnetization switching forbidden in classical physics . 23. Richard Feynman has described turbulence as the most important unsolved problem of classical physics . 24. In classical physics , fictitious forces are used to describe acceleration in non-inertial reference frames. 25. Finally, this only applies to the realm of classical physics . 26. :: 1 ) this article appears to be about QM and not classical physics . 27. For example the wiki article on Physics leads to an article on Classical Physics . 28. The solutions to quantum mechanical stuff always resolves to classical physics in the macroscopic world. 29. The observation came first, just like in classical physics . 30. In classical physics , the behavior of the currents are present, these equations can be written
