From: David Woolley (david@djwhome.demon.co.uk)
Date: Sun Jun 30 2002 - 15:49:53 PDT
>
> Well....There is probably no natural source of radiation that is as strong
> as a lightning bolt.
I doubt that.
>
> There are (at least) two problems:
>
> 1. Does anyone have a spectrum plot of a lightning bolt....we need to
> see what one "looks" like, and where the energy content is greatest.
I'd suggest looking at some of the material on nuclear explosion EMP
protection. From what I remember, they say that EMP is faster than
lightening, but still extends much less than start of the waterhole.
www.fas.org rings a bell. I think you are thinking of most of the energy
below 10MHz.
> 2. Does anyone know the duration of a typical bolt ? We would need
> to integrate for the proper length of time, and check for doppler shift, all
> very
> rapidly.
The proportionate frequency range means that Doppler is just not an issue.
[ For Dr Shuch, it seems that either public should be duplicated to
the argus list, or there really shouldn't be an argus list, as almost
everyone multi/cross posts both lists. ]
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