Re: [FRIAM] power lines
On Jun 2, 2008, at 5:54 PM, Russell Standish wrote: On Mon, Jun 02, 2008 at 05:24:35PM -0600, Don Begley wrote: A delayed comment but worth noting: while I concur the EMF scare was just that, it doesn't mean living below a power line is uneventful. Years ago, a transmission engineer friend and mentor took me to a 345kV line south of Albuquerque in the Mesa del Sol area to demonstrate its power. On a hot summer day we stood under the line at a point where a barbed wire fence protruded from a sand drift. Grab it, he said, pointing to the fence. I did but only long enough to drop it. The wire was humming with enough electricity to make the experience decidedly unpleasant. This probably wouldn't happen in winter. In summer,however, the load on the line is maxed as is the sag in the line from the heat of the load, bringing it near the closest point to the ground allowed by design standards and close enough to excite electrons in the barbed wire. -d- Probably more a matter of the sand being dry enough for the barbed wire to be electrically decoupled from you. I've seen similar EMF coupling effects in ordinary household 240V power, if things are sufficiently well earthed. Doesn't mean it injurious to health, however. The normal impedance of a human being is 5-6 orders of magnitude higher than barbed wire! Definitely, the wire was earthed. FWIW, however, the engineer said the energy came from the power line and sensible only in those summer. -d- -- A/Prof Russell Standish Phone 0425 253119 (mobile) Mathematics UNSW SYDNEY 2052 [EMAIL PROTECTED] Australiahttp://www.hpcoders.com.au FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org
[FRIAM] re power lines
There is also an artist that does shows by planting a couple of hundred florescent tubes in the ground under high voltage lines and they all light up, its quite a sight, no wires. I will go find the photos I have also got some nice shots taken at Crystal River Florida Power plant on a really humid day just before a rainstorm and you can see the arcs jumping 150' outside of the containment area Maybe we can get Steve to do some Tesla demos at the complex be really great for July 4th and we wouldn't need any fireworks ( : ( : pete -- Peter Baston *IDEAS* /www.ideapete.com/ http://www.ideapete.com/ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org
Re: [FRIAM] re power lines
PREVIOUSLY SENT LINK. http://www.treehugger.com/files/2008/02/emf_richard_box.php ORLANDO peter wrote: There is also an artist that does shows by planting a couple of hundred florescent tubes in the ground under high voltage lines and they all light up, its quite a sight, no wires. I will go find the photos I have also got some nice shots taken at Crystal River Florida Power plant on a really humid day just before a rainstorm and you can see the arcs jumping 150' outside of the containment area Maybe we can get Steve to do some Tesla demos at the complex be really great for July 4th and we wouldn't need any fireworks ( : ( : pete -- Peter Baston *IDEAS* /www.ideapete.com/ http://www.ideapete.com/ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org -- Orlando Leibovitz [EMAIL PROTECTED] www.orlandoleibovitz.com Studio Telephone: 505-820-6183 FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org
Re: [FRIAM] power lines
On Tue, Jun 03, 2008 at 04:09:55PM -0600, Don Begley wrote: Probably more a matter of the sand being dry enough for the barbed wire to be electrically decoupled from you. I've seen similar EMF coupling effects in ordinary household 240V power, if things are sufficiently well earthed. Doesn't mean it injurious to health, however. The normal impedance of a human being is 5-6 orders of magnitude higher than barbed wire! Definitely, the wire was earthed. FWIW, however, the engineer said the energy came from the power line and sensible only in those summer. -d- Due to gremlins in the system, I meant to say not sufficently well earthed. I thought this might be the case if the sand was sufficiently dry, then the barbed wire may be a floating conductor. Ah well... -- A/Prof Russell Standish Phone 0425 253119 (mobile) Mathematics UNSW SYDNEY 2052 [EMAIL PROTECTED] Australiahttp://www.hpcoders.com.au FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org
