Hi! Firstly, I would like to start with the general question: What is now the actual meaning of the energy-time uncertainty, i.e. in which sense might both quantities be...

Also available as http://math.ucr.edu/home/baez/week243.html December 25, 2006 This Week's Finds in Mathematical Physics (Week 243) John Baez Today I'd like to talk a bit...

I've been looking at Heim theory for some time now. I got copies of Heim's books and finally have reached an understanding of how it works. To briefly explain what this...

hello, are there any angular momentum operators for, say, a hydrogen atom, that raise and lower the angular quantum number l (ell) up and down, as opposed to the Lx + iLy...

I have been reading Kevin Brown's intriguing "Mathpages" http://www.mathpages.com/rr/s9-10/9-10.htm and found his arguments against free photons to be fairly...

Dear All: I would like some refs and/or thoughts on the following two related questions: 1) If I am not mistaken, there is a " Groupoid Convolution...

I recently asked a question about the equivalence principle that got me thinking about the photon in a gravitational potential argument that is purported show that gravity...

Hello! I searched the literature on ergodic theory but could not find a theorem stating that every system with positive KS-entropy is strongly mixing or an example of a...

California Institute of Technology Pasadena, CA 91125 We have an immediate opening for postdoctoral scholars in the area of modeling of condensed phase energetic materials...

REQUEST FOR DISCUSSION (RFD) sci.physics.fundamentals This is an informal Request For Discussion (RFD) for the creation of the moderated Usenet...

If there is a changing flux through a loop of conducting wire then a current is produced. Lens' law says that this current produces a B field that opposes the change. But...

Dear Colleagues, I would like to know how the wavefunction of the collection of non-interacting n electrons and M(m) noninteracting nulclei looks like . For example two...

http://video.google.com/videoplay?docid=1996321846673788606&q=nuclear Comments? -- Dirk http://www.onetribe.me.uk - The UK's only occult talk show Presented by Dirk...

University of Minnesota Minneapolis, MN 55455 The Department of Electrical and Computer Engineering at the University of Minnesota, Twin Cities seeks a post-doctoral...

In article , "Chalky" wrote: Consider an expanding sphere of shrapnel which...

Also available as http://math.ucr.edu/home/baez/week242.html December 17, 2006 This Week's Finds in Mathematical Physics (Week 242) John Baez This week I'd like to talk...

REQUEST FOR DISCUSSION (RFD) sci.physics.fundamentals This is an informal Request For Discussion (RFD) for the creation of the moderated Usenet...

Roger Shawyer was invited to give an IEEE Evening Lecture on November 23rd, 2006, to be delivered at Imperial College London. The topic was his controversial...

In article , wrote: Roger Shawyer was invited to give an IEEE Evening Lecture on November ...

When the light is too bright, there is a star of light on some place of the object. I tried to find something connected with the nature of this effect and couldn't. Do you...