Quote from: Les W on December 29, 2006, 10:47:37 amBlitzVery appropriate!
a contributary factor was that they were on the telephone to each other at the time. The lightning travelled along the phone wire.
We don't hang around long at Templeton if there is a thunderstorm!
Yes, there is a local bounce where the lighning strikes, and it may be possible for it to get a meter or so down the shaft.The key thing with the "Blitz" example is the telephone line, that draws on the mine shaft analogy. Caves usually won't have such a conductor, but may possibly have a wet rope (!)The cattle dying is more complex, as they are above ground. During a lighning strike, the local potential may be a few hundred volts per inch above ground, so a cow being say 5 feet high may have a potential difference of several thousand volts from toe to tail and it is this IMO that would cause the death. Doubt that a cow lying down would die. This is why people are told to lie down if caught in the open.I seem to recal this being documented on the Gahr Paru expeditions, where severl strikes were experienced at the entrance.
Why is the air ionised around cave entrances?
Never heard of this issue myself at all. Probably have a higher chance of seeing Lord Lucan riding Shergar
I'd always assumed the issue was greater humidity, in the same way that lightning strikes on mountain crags tend to follow wet gullies and groove systems (where presumably radon isn't relevant).
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