One wild thing to consider: Tornadoes are dynamos. Their energy creates ionized particles that due to rotation make a magnetic field. These fields are monitored as one of the measures of tornado activity.
No one seems to coorelate that this is a 'floating' magnet and has a potential to be attracted to large ferrous objects. I have no explanation for why they don't follow railroad tracks, perhaps the tiny size has something to do with it. However, there are recent examples of tornadoes following what on the surface are weird paths: In Omaha, NB a tornado followed along a city street, even turning corners, although the top kept 'pulling' it to the side, until finally the bottom of the funnel snapped and seemingly took off at a right angle to the former path. Upon investigation it was determined that under this street there was very large antique cast iron pipe [6 to 8 feet diameter] from an old water supply system. Comparing the map of the piping to the map of the tornado's path one can see how the tornado followed the buried pipe along. I only mention it as a 'heads up' for your location Robert > > Hi Bob, > > I'm currently reading the NEC over and over, and also a secondary > lightning protection document from the same people that publish the NEC. > > There is some nievity(?) in the NEC in that high frequency effects and to > some degree impedance are almost ignored. > > My thanks to all that have replied to me on and off the list over this, > and as soon as I can get something I can believe in I'll report back. > > Sincerely, > > Derek. > > - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
