At 02:44 PM 3/10/01 -0600, Jim Paul wrote:
>You could put up a photo sensor, and time the delay between the
>lightning flash as detected by the photo sensor and the signal from
>the coil sensor.  Divide this by 5, and that will be the approxiamte
>distance in miles.

Interesting, but I'm not likely to get the flash at any useful distance.
Why the delay? Mag propagation is supposed to be at C, as well as optical.

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