Oh...and for those who don't want to click on the link..
It's from The New Civil Engineer. MAGAZINE online version. A mag with quite a long and well respected history too.
Here is an excerpt.
"The electrostatic explanation ties in with the likely presence of varying electrostatic fields around pipes, cables, voids and bodies of water. It may be that forward motion will also play a part in the response of the rods to the fields that are present.
"The divining rod is performing a similar function to the gold leaf electroscope used during school physics to demonstrate electrostatic effects. The charges on the rods cause a response in relation to the charges on the object. Like charges repel and opposite charges attract to influence the alignment that the rods are trying to take up. It was noted that if the dowser removed his or her shoes, their sensitivity often increased, indicating the importance of electrical continuity with the ground.
"Some work has been published (
www.connect.ab.ca/~tylosky/) supporting the electrostatic explanation and providing a convincing argument as to why one hand (the right) is sometimes more responsive than the other. The existence and detection of electrostatic fields associated with underground features is being researched at Nottingham Trent University with the intention of developing a scientific instrument, operating independently of the human body, to assist the geotechnical engineer in locating underground features.
Conclusions
"Most people, but not all, are able to generate a reaction in divining rods relating to the presence of underground features such as cables, metal and plastic pipes, buried tanks, foundations, trenches, large tree roots, voids/cavities and bodies of water.The control and understanding of the response seems to improve with practice.
"The reaction is explained in terms of electrostatics and the rods aligning themselves with the various electrostatic fields present around the underground features.
"Limitations are its dependence on operator sensitivity and the presence of electrostatic fields to relate the object to the divining rods. It should not be used as a substitute for locating services in consultation with the statutory authorities before any excavation. However it is a very cheap, and often remarkably effective (and entertaining! ) way of making a preliminary 'geophysical' appraisal of a site before more detailed geophysical and intrusive investigation work.
"Acknowledgements
"The enthusiastic participation and support of the delegates on the part-time MSc course in geotechnical engineering design and management at Nottingham Trent University is much appreciated by the authors.
"References
"Grounds AC (1996).Dowsing as a tool for location of underground services.BEng Dissertation, Ref ES/96, Boots Library, Nottingham Trent University.
"Hansen GP (1982).Dowsing - a review of experimental research.J Soc Psychical Research 51 (792) 343- 367.
"Killip I (1984).Detecting geophysical anomalies at construction sites by dowsing.Land and mineral surveying 2 (12),633-644.
"Wilcock J (1994).Royal Forest of Dean caving symposium. www-sop.inria.fr/agos-sophia/sis/dowsing/dowsdean.html
It's not anything to do with woo woo...think gold spectroscopy and static....
Good night everybody....
Bzzzzz bzzzzz