eodmatt - have you read up on the ideomotor effect? It explains what you experienced pretty well. Have a look at
this video.
maguire - Grattan's story checks out in that he was apparently a big believer in dowsing - see a catalogue entry
here for his papers including an article to the RE Journal defending dowsing.
Thing is, reading the account you posted, I don't see any difference between it and countless other anecdotes about the efficacy of dowsing. This line is key I think;
the colonel began dowsing and getting reactions everywhere to the west of the test bore.
Read - he got lots of ideomotor responses over a wide area. It doesn't mention whether he even tried to the other side of the bore.
On the strength of this two further trial bores were executed with spectacular results.
So they drilled two more bores further along and discovered the aquifer. Basically the process is the same as guesswork. It wasn't the dowsing that found the aquifer, but it was
Col. Grattan, if that makes sense. The result would have been the same if he'd just pointed and said 'dig over there' without getting 'twiggy' with it.
Anyway, I'd still love to know the source of this Falklands story.
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