By the way, I should say "Thanks!" for taking the time to post all these here. It's interesting, even if I don't believe for a minute that it's OU.
On 03/18/2010 04:30 PM, Harry Veeder wrote: > Sorry, he has now corrected the depiction of the toroid windings. > > click the second photo: > > http://www.facebook.com/album.php?aid=156403&id=676517267&l=2a69ff7aae > > http://tinyurl.com/ycw4xm4 > > You should be able to access the photos without having to sign into > facebook, so I don't know what the problem is. > It's still not letting me see the pictures until I log in, and in fact it doesn't reliably let me see them at all if I use Firefox under Linux. MSIE under Windows works a lot better for this. Truth be told I don't see that the difference makes any difference -- they both look correct to me. The current goes down the inside, up the outside, and after winding halfway around the coil, the wire comes out to jump 180 degrees around, then goes down the inside, up the outside, around the other half of the coil. The tangential direction of the current is the same all the way around, and reversing the two halves cancels the "lateral" current which otherwise would result in a B field along the axis of the torus equal to that which one gets with a single turn around the torus. Looks like the two diagrams are more or less mirrored, but either one seems like it should be fine. In fact I had pictured something a little different, which was winding a single layer of wire which worked its way all the way around the torus, followed by a second layer which works its way all the way back. But it really doesn't make much difference; the residual field due to an imperfect winding geometry isn't really at issue here. It's surely swamped by the distortion imposed on the field by the external neo magnets. > > > ----- Original Message ---- >> From: Stephen A. Lawrence <[email protected]> To: >> [email protected] Sent: Thu, March 18, 2010 1:03:38 PM Subject: >> Re: [Vo]:circuit diagram >> >> BTW I think you may need to be signed into facebook to see this >> image. > (At >> any rate, I couldn't see it until I signed in.) > > On 03/18/2010 12:15 PM, >> Harry Veeder wrote: >> >> href="http://www.facebook.com/photo.php?pid=3513566&l=e812a3f42e&id=676517267"; >> target=_blank >>> http://www.facebook.com/photo.php?pid=3513566&l=e812a3f42e&id=676517267 >> >> >> >>> >>> http://tinyurl.com/yewd4sf >> >> Harry >> >> >> >> >> >> __________________________________________________________________ >> The new Internet Explorer® 8 - Faster, safer, easier. Optimized >> for Yahoo! Get it Now for Free! at >> href="http://downloads.yahoo.com/ca/internetexplorer/"; >> target=_blank >>> http://downloads.yahoo.com/ca/internetexplorer/ >> >> > > > __________________________________________________________________ > The new Internet Explorer® 8 - Faster, safer, easier. Optimized for > Yahoo! Get it Now for Free! at > http://downloads.yahoo.com/ca/internetexplorer/ > >
