Return-Path: Received: (qmail 22575 invoked from network); 25 Jan 2001 21:23:22 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by 10.226.25.101 with SMTP; 25 Jan 2001 21:23:22 -0000 Received: (qmail 27895 invoked from network); 25 Jan 2001 21:26:53 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 25 Jan 2001 21:26:53 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14LtoJ-0007mL-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 25 Jan 2001 21:20:03 +0000 Received: from ds-img-7.compuserve.com ([149.174.206.153] helo=spdmbaaa.compuserve.com) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14LtoI-0007lp-00 for rsgb_lf_group@blacksheep.org; Thu, 25 Jan 2001 21:20:02 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: (from mailgate@localhost) by spdmbaaa.compuserve.com (8.9.3/8.9.3/SUN-1.9) id QAA10263 for rsgb_lf_group@blacksheep.org; Thu, 25 Jan 2001 16:19:19 -0500 (EST) Date: Thu, 25 Jan 2001 16:18:55 -0500 From: "boffin1" Subject: LF: vector potential - the last word? To: rsgb_lf_group@blacksheep.org Message-ID: <200101251619_MC2-C323-E007@compuserve.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Disposition: inline Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Readers who retain old copies of the journal RadCom will have seen two historic photographs of a distinguished experimental physicist which appeared in the April 1944 and May 1944 issues of the journal. The distinguished hand was holding a flourescent tube in the presence of a high electrical potential which illuminated the tube. These historic photographs exhibit the first recorded experimental verification of vector potential in the radio frequency spectrum. They illustrate the time-varying potential in free space radiated by a toroidal antenna ( which emits no magnetic field and has no standing electrical charge). It cannot be explained in terms of scalar potential because there is clearly a reflection from the roof of the vehicle and further research would have shown that it travelled at the speed of light and was time varying at the frequency of transmission. Nor can it be explained directly in terms of an electric field for a field requires a difference in potential for its creation. The distinguished scientist who performed this historic experiment is known to us all. He was Peter Dodd, G3LDO. Pehaps he should be nominated for a Nobel Prize! 73, Roger, G2AJV.