Even within classical physics the existence of a point charge is problematic. (as well as point masses.) Do you mean charge density at a point?
Harry On 20/4/2008 6:49 AM, Michel Jullian wrote: (HUP = Heinsenberg's Uncertainty Principle). Back to my DIESECF (Desorbing vs Incident Excess Surface Electron Catalyzed Fusion) speculation for a moment, forwarding a post I made to the CMNS group today, in response to a sensible objection by X (names hidden). Michel ----- Original Message ----- From: Michel Jullian <mailto:[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Cc: X <mailto:[EMAIL PROTECTED]> Sent: Sunday, April 20, 2008 11:56 AM Subject: CMNS: Re: Question to X (was Re: Apples and Oranges) Thanks for your reply X. Y made the same very sensible objection some time ago. My lame response at the time was: "if screening occurs, it has to be at the negatively charged cathode surface, there is no better place... something must escape us in the physics". And then the other day I discovered the image charge concept. It does provide a mechanism whereby the (induced) lightweight fast moving -e (single electron charge) spread out all over the place, as illustrated by the minus signs on the cathode surface in Feynman's figure below (Lectures on Physics vol.2 p. 6-9)... ..."conspires" to be perceived by the (inducing) +e charged incident hydrogen ion ("+" ball on the right), and by the rest of the world on the same side of the cathode, as a mirror image (and, as such, equally punctual and slow moving) -e charge ("-" ball on the left) This tentatively suggests that there is no QM law preventing a properly uncertainty-spread electron to _look like_ a classical point charge... does this make any sense? Michel ----- Original Message ----- From: X To: "CMNS" <[EMAIL PROTECTED]> Sent: Friday, April 18, 2008 4:13 PM Subject: CMNS: Re: Question to X (was Re: Apples and Oranges) ... >> Do you think that Coulomb screening by the negative surface charge induced by an impinging deuteron (electrostatically equivalent to a mirror image -e charge as discussed recently) can significantly improve its chances to fuse with a simultaneously desorbing deuteron, wrt to chances when both are inside or outside the cathode? >> > [snip] the screening electrons being very light will be > spread out a lot through quantum uncertainty so it will not work very > well
