[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Why cant we feel RF burns?



Original poster: "david baehr" <dfb25@xxxxxxxxxxx>


Just dont let it Zap your zipper !!!! A friend of mine, years ago was viewing a good sized Tesla Coil,and, it Zapped the zipper of his pants!! and later, he felt much pain in the ,.....well, ya know,....said it something to do with a chemical reaction in the , ....ya know .....Best advice would be to just avoid the sparks all together !!!!



From: "Tesla list" <tesla@xxxxxxxxxx> To: tesla@xxxxxxxxxx Subject: Re: Why cant we feel RF burns? Date: Sun, 18 Sep 2005 12:24:54 -0600 >Original poster: Terry Fritz <vardin@xxxxxxxxxxxxxxxxxxxxxxx> > >Hi, > >At 12:15 AM 9/18/2005, you wrote: > >>I quote this from a website I came across: >> >>Burns: Due to the high frequencies involved, Tesla coils can cause >>severe burns without the sensation of pain. These burns are >>typically very deep and need long term medical attention. > >Sounds like something I wrote :-) > >http://hot-streamer.com/TeslaCoils/Safety/safety.htm > > >>Does it mean that RF (because of the high frequencies), can induce >>the current to flow along the blood vessels without flowing along >>the membranes. As such, we wont be able to feel the pain because >>the nerve cells, etc are located along the membranes and not inside >>any blood vessels... > >No. The electrical "Skin Depth" in humans is about 1 ot 2 meters at >Tesla coil frequencies. Currents flow along the path of least >resistance (I may have said that backwards in another post..). The >AC currents do no allow the sodium in the nerves to become polarized >to create the chemicals that cause pain or something like that. It >takes a fraction of a second for current to be registered as pain >but the AC currents basically turn the nerves off... I am not a >doctor, but it is something like that. > > >>Is it only RF current can be able to flow in the inner parts of the >>body without flowing along the membranes (exterior) first? > >The dry outer skin is pretty none conductive, but the voltages we >deal with are very high. The current simply flows alone the lowest >resistance paths. If the current is high enough, you can actually >get a plasma "arc" thorough you. that is "bad"... > >>If so, how is that possible? Do we just take it for granted that RF >>current has this special property of allowing the current to flow >>in the inner parts w/o any flowing along the exterior? > >In or case, the currents flow much like DC currents. But the AC >nature of the currents prevents the nerves from reporting pain. > >Cheers, > > Terry > > > >>Thanks >>Sam > >