Discussions - sci.physics.research

	Questions about publication
	I have written the article and want to publish it. I work in the area of high energy QCD. I see that there are many journals, which have appropriate research area. How to choose the journal for publication? If the article will be rejected, is it good practice to resubmit it into another journal? By Alexey Popov - 5:26am - 1 new of 1 message

	test posting
	This is a test posting. Unless you're one of the s.p.r moderators, you can ignore it. By Jonathan Thornburg [remove -animal to reply] - Oct 7 - 1 new of 1 message

	The quadratic divergence of the Higgs mass - not a problem?
	Recently I happened to read two papers that pretend that the quadratic divergence of the Higgs mass is not a problem. The first is "From Quantum Hydrodynamics to Quantum Gravity" [link] where Volovik says that the quadratic divergence of the Higgs mass has the same origin as the... more » By JohnMS - Oct 5 - 2 new of 2 messages

	Mathematics and Information
	Not quite sure how to phrase this since it's a question I have ever seen asked... Is here a minimum amount of information/entropy/energy associated with the creation/discovery of a given mathematical theorem? I assume a practical minimum is the amount of information required to store the result, but its derivation?... more » By Dirk Bruere at NeoPax - Oct 5 - 3 new of 3 messages

	Numerical Simulation Density Profiles
	What's the difference b/t a "density profile" or "temperature profile" etc and just a basic density graph, temperature graph, etc? (Cosmological simulations). Is a profile a graph over a chunk of space which is 2-dimensional plus width-not-too-small /large, whereas a graph is just a 2-dimensional plot, y vs. x, say.... more » By peedah - Oct 5 - 1 new of 1 message

	MOEPED 6 Update: 3 to 1 ultracapacitor bank
	Usenet discussions of the MOEPED ((MObile Experimental Physics Educational Demonstrator) human/electric hybrid bicycle series go back to 1999-05-05 in the Google Groups archive: [link] The vehicles entertain and educate bicycle riders, alternative-energy... more » By dgo...@replikon.net - Oct 5 - 1 new of 1 message

	Density, Temperature Profiles
	What's the difference b/t a "density profile" or "temperature profile" etc and just a basic density graph, temperature graph, etc? (Cosmological simulations). Is a profile a graph over a chunk of space which is 2-dimensional plus width-not-too-small /large, whereas a graph is just a 2-dimensional plot, y vs. x, say.... more » By peedah - Oct 5 - 1 new of 1 message

Question about the contracted Christoffel Symbols

Are the contracted Christoffel Symbols vectors? A quick glance at the transformation properties of the Christoffel Symbols seems to suggest that the non-homogeneous part of the transformation would vanish under contraction by simply applying the chain rule. However, I have not been able to find a verification of this in any textbooks or online.... more »

By Igor - Oct 5 - 3 new of 3 messages

	"Feeding, Caring for and Maintaining Your Black Hole" by Bozo de Niro
	[link] Like many physicists, I am not too worried about black holes at LHC. But what if we did have a small black hole somewhere on earth. What would happen? Most non-physicists I talk to have heard that black holes suck up all... more » By Bozo - Oct 2 - 4 new of 4 messages

	What it's like to Travel on a Light Beam
	What it's like to Travel on a Light Beam [link] (PDF, 105k) Maxwell s equations, in the form actually published in his 1867 treatise, explicitly broke boost-invariance with the incorporation of an absolute velocity vector G. However, as more recently argued by... more » By Rock Brentwood - Oct 2 - 3 new of 3 messages