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Article #1076Re: microwave cooking or lightning rods
From: Denis Chalifoux
Date: Mon, 26 Sep 1994 05:31
Date: Mon, 26 Sep 1994 05:31
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2253 bytes
Hmmmm... Perhaps it would be better to say... "Lightning rods MAY attract lightning." I do agree with what is being discussed. I am thinking about the cases when the potential difference is so great that the rod cannot provide the neutralizing charges fast enough. Also related, re: approaching the electrostatic generator with a needle... and also the mention of hot/cold? ligtning... It has happened several times that myself and my mountain climbing partner foolishly found ourselves on top of a ridge in the late afternoon with thundershowers (too much late night partying and a not-so-early start in the morning). Both times involved a crackling sound of static discharge and faint purple corona, visible in daylight, at the end of our ice-axes that were wedged into the side of our rucksacks. I could feel the hair on my head tingle (probably from standing up straight from fright!) and there was that distinct smell of burnt hair from my beard. On the first occasion the sensations passed quickly, except for the fear. On the second occasion, it started out the same with the corona on our ice axes (Iike a lightning rod?) but then my buddy was zapped, blowing off the bottom of his right boot. The charge path was along the head of the ice axe, through the metal shaft (inside a wooden handle) then through his right thigh, to the calf and foot. I don't know which way the charge flowed, but his leg was paralized for about 45 minutes. So, do lightning rods attract lightning...? - Denis
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 16cfd8,2224e9142e77d48d,start X-Google-Attributes: gid16cfd8,public X-Google-ArrivalTime: 1994-09-25 23:03:09 PST Path: arc1-ca.pugleaf.net!bga.com!news.sprintlink.net!howland.reston.ans.net!gatech!paladin.american.edu!auvm!FREENET.VICTORIA.BC.CA!uq130 Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU Newsgroups: bit.listserv.physhare Message-ID: <Pine.2.2.9409252217.D16145@vifa1> Date: Sun, 25 Sep 1994 22:31:18 -0700 Sender: Sharing resources for high school physics <PHYSHARE@PSUVM.PSU.EDU> From: Denis Chalifoux <uq130@FREENET.VICTORIA.BC.CA> Subject: Re: microwave cooking or lightning rods In-Reply-To: <9409250134.AA04427@freenet.victoria.bc.ca> Lines: 29