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Re: Lightning Gun To Combat Terrorists - WHERE IS THE RETURN PATH???

Original poster: Terry Fritz <vardin@xxxxxxxxxxxxxxxxxxxxxxx>

Hi,

Radio waves only need an antenna long enough to create a potential difference in the presence of electromagnetic waves. They operate in free space such as on satellites and space craft. In a real way, EM waves tend to bring the ground path along with them ;-)

However, in the case of the Tesla coil taser gun thing, a ground path is needed which is apparently provided by a ground spike on the shooter's boot.

I have not heard yet if the taser gun actually showed up at the Teslathon and if it seemed practical...

Cheers,

        Terry


At 11:31 AM 9/5/2005, you wrote: 
Hello Ed,

My 9 vdc transistor radio is sitting on my wooden table happily detecting passing EM wave energy and playing music from an AM station transmitting 20 miles away.

Where is the return path?

Stork


"Hey Matt,
There is not need for a return path if the current is high frequency
AC,"
    Not correct.  The return path is always there - just may not be
metallic.
Ed