Marty Green

819 reputation

310

bio	website	marty-green.blogspot.com
	location	Canada
	age
visits	member for	2 years, 1 month
	seen	May 17 at 18:53
stats	profile views	337

	819 reputation	bio	website	marty-green.blogspot.com	visits	member for	2 years, 1 month
310 badges		location	Canada		seen	May 17 at 18:53

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Apr 23	awarded	Yearling
Apr 5	answered	What are the various physical mechanisms for energy transfer to the photon during blackbody emission?
Apr 5	comment	What are the various physical mechanisms for energy transfer to the photon during blackbody emission? I would think that in a metal, the conduction electrons would form more or less a stationary cloud, while the lattice vibrations would consist of the metal ions, accompanied by most if not all of their tightly bound electrons.
Apr 5	comment	What are the various physical mechanisms for energy transfer to the photon during blackbody emission? Yes, you are right, the lattice vibrations in a solid radiate just like an antenna. I think it's true that all of the thermal radiation properties of matter can be analyzed by finding the time-varying charge density (which is in principle calculable using quantum mechanics) and then just applying Maxwell's Equations to calculate the resulting radiation.
Mar 29	comment	A charged sphere with pulsing radius The other contributors so far have tried to give hints without giving away the answer, so I'm going to do the same. This problem is actually a physical description of a hydrogen atom in a superposition of the 1s and 2s states. There is a time-varying charge density in this superposition, and it is pretty much exactly what the problem here describes.
Mar 8	answered	How to get the angle needed for a projectile to pass through a given point for trajectory plotting
Mar 6	answered	Bessel vs. modified Bessel in radial equation of hydrogen
Mar 2	revised	Solving the diffusion equation added 174 characters in body
Mar 2	answered	Solving the diffusion equation
Feb 28	comment	What was Albert Einstein's proof for $E=mc^2$? Yes, Ron is probably out of his mind but he still knows more physics than ten anna vs and four dmckees put together.
Jan 31	comment	How can I stand on the ground? EM or/and Pauli? Ron, you shouldn't waste your time arguing with guys who use HAHAHA as a debating point. But back to the question at hand...I think I'm going to vote for Heisenberg as the root cause here. See my answer posted below.
Jan 31	answered	How can I stand on the ground? EM or/and Pauli?
Jan 31	comment	How can I stand on the ground? EM or/and Pauli? Actually, I think Ron Maimon is right.
Jan 24	answered	Counting electromagnetic modes in a rectangular cavity and boundary conditions
Jan 18	comment	How much effect does the Bernoulli effect have on lift? @MikeDunlavey I stumbled across Denker's website about seven or eight years ago and it made a huge impression on me.
Jan 18	comment	How much effect does the Bernoulli effect have on lift? @mike Thanks Mike. I'm not used to people agreeing with me.
Jan 18	comment	How much effect does the Bernoulli effect have on lift? It is equally true that all the lift depends on the change in airflow direction. You have to calculate one or the other but not both.
Jan 18	comment	Can light be canceled by merging with an inverted wave? @EduardoGuerras Acutally I did downvote and then regretted it. I think it's more important to leave the upvotes as evidence of the quality of voting that goes on here.
Jan 18	comment	Can light be canceled by merging with an inverted wave? Eduardo you are so right.
Jan 16	revised	Radiated power and energy density for a black-body added 680 characters in body