tag:blogger.com,1999:blog-916785202343169452.post2591597688923934894..comments2023-10-21T19:10:40.523+03:00Comments on Math Pages Blog: Quantum physics in a grafiti formAnatolyhttp://www.blogger.com/profile/12647709768208101398noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-916785202343169452.post-69350993276445005892009-12-28T14:30:52.125+02:002009-12-28T14:30:52.125+02:00Quantum mechanics says that the most complete desc...Quantum mechanics says that the most complete description of a system is its wavefunction, which is just a number varying between time and place. One can derive things from the wavefunction, such as the position of a particle, or its momentum. Yet the wavefunction describes probabilities, and some physical quantities which classical physics would assume are both fully defined together simultaneously for a system are not simultaneously given definite values in QM. It is not that the experimental equipment is not precise enough - the two quantities in question just are not defined at the same time by the Universe. For instance, location and velocity do not exist simultaneously for a body (this is called the Heisenberg uncertainty principle — see its formula in the box to the right). I am a college sophomore with a dual major in Physics and Mathematics @ University of California, Santa Barbara. By the way, i came across these excellent <a href="http://www.funnelbrain.com/" rel="nofollow">physics flash cards</a>. Its also a great initiative by the FunnelBrain team. Amazing!!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-916785202343169452.post-89767124747644139062009-05-21T18:59:06.735+03:002009-05-21T18:59:06.735+03:00Cool!Cool!Pcfantasy Hawhttps://www.blogger.com/profile/00671098815712498696noreply@blogger.com