Earth Scanning

balasaheb said:

Respected Sir,
My Self Pawar B.J., wants project ideas about the technique to detect water under earth surface to dig well or tubewell for the farming perpose.

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Hero999 said:

Dowsing isn't much better than chance. Someohow I would think that a proper geological survey carried out by real scientists would be more reliable than a load of loonies how think they know better.

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Hero999 said:

If what you're saying is true, then it's no wonder there are som many leaks.

Leaks are easy to spot because you can easilly see the wather spouting up through the ground. Analysis of the water soon proves that it's tap water and not a natural spring.

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Hero999 said:

So if they use dowsers how do you suppose they distinguish from the water flowing through the pipes and the water leaking about of them?

They don't, small leaks where the water escapes underground probably go unnoticed. If there's a huge leak and the water is filling an underground chamber, they can probably spot it because there'll be a huge drop in pressure.

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Nigel Goodwin said:

Wonder why dowsing rods are standard issue on water board vans then?, and why they are trained to use them?.

Because it's the most accurate way to find the spot to dig, and you don't want to know how much it costs for every hole that's dug! - they can't afford to dig in the wrong place too many times.

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A spokeswoman for Thames Water, the UK's largest water services company, comments: "Though we use conventional methods such as soundwaves and giant ear trumpets to find leaks, we cannot see any harm in dowsing. Our responsibility stops at the boundary of the home, so customers who have leaks or plumbing problems can do what they like to trace them. "With all the recent controversy about plumbers who overcharge, calling in a dowser to find the source of a leak could be an excellent alternative," adds the spokesman.

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Super_voip said:

Earth resisitivity probing will give a give a reasonable picture if done correctly, but only down 10-20 metres, dependent on electrode spacing. If the well needs to go down further, I'd have to go down 100m, local knowledge is sometimes the best guide. Also look for VLF systems.
http://www.ldolphin.org/Geoarch.html

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Hero999 said:

I've never heard that before.

Could to please point me to some more information.

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Centretek said:

The Skeptics Society has a standing $200,000 prize for ANYONE who can demonstrate a better than 75% accuracy at dowsing under controlled conditions.
The prize has stood unclaimed for over 10 years. Does that tell us something?

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