Owain wrote:

Geronimo W. Christ Esq wrote:
I do not know how it works, I have only seen it done as I described
earlier in this thread. I would however like to know.
There are several theories on Wikipedia about why it appears to work,
sometimes. In practice under controlled conditions it seldom works.

I wish I'd bloody never bloody mentioned bloody dowsing ...

I know the feeling - If only you'd had a crystal ball ...

John
--
John White,
Electrical Contractor