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Ramblings on water divining

A walk in the Wirrabara forest, S. Australia
The person in the photo could be divining, but isn't.
Wirrabara Forest, South Australia

We think of ourselves as rational beings, but at this time when science has reached enormous heights, so called 'new age' beliefs are rife and most of the old superstitions are still active in some minority or another. Many people believe that a successful site for a well can be chosen by a gifted person walking over the land with a 'divining rod'. Belief in astrology and in the efficacy of many forms of medicine not supported by valid evidence is common.

Written about September 2001; placed on its own page 2004/02/25; modified 2008/05/16
Feedback welcome, email daveclarkecb@yahoo.com



Contents

On this page...
Introduction
It does not work
Other questions and curiosities
Geological Survey of SA
Divining history
Divining success rate





Eucalyptus cammaldulensis at Crystal Brook, S. Australia
A rare flow of water in the Crystal Brook, South Australia. Recharging the subsoil and perhaps an aquifer or two
Diviner; thanks to James Randi

Introduction

The self-deception of being able to locate groundwater (underground water) by walking over the ground with either a forked stick, one or two bent wires, or a pendulum is generally called water divining in Australia and water dowsing or water witching in the USA. It is a superstition that many people do not recognize as such.

What makes me believe that it doesn't work?


  1. I have worked in the groundwater field for about thirty years. I have never seen or heard of a convincing demonstration of divining.
  2. I have read of many scientifically conducted studies into divining. I have never read one that indicated that it worked.
  3. Groundwater is very common, almost ubiquitous. For example clays can contain up to 50% water, although they will not yield a significant amount to a well. Do divining rods discriminate between water contained in clays and water contained in sands, gravels, and fractured rocks?
    The Hills of Arkaba, Wilpena Range in the background,
Flinders Ranges, S. Australia
    How many deluded diviners have walked their wires or forked sticks across country like this in the Flinders Ranges of South Australia?
  4. Diviners usually talk of finding narrow underground streams. In most geological settings these do not exist. The many diviners that I have talked to seem to believe that these streams are less than a metre wide and are spaced every hundred metres or so across the landscape. If this were true, then in my work locating well sites, because I ignore these 'streams', my success rate in selecting well sites would be less than one percent; however it is more like 40%. (I most often select well sites in the Australian desert.)
  5. There are only four known forces in nature: electromagnetism, gravity, the strong and weak nuclear forces. Of these, only the first two are significant over the distances people usually deal with. (The force exerted by wind or water currents is due to the electromagnetic forces between the electrons 'attached' to the molecules of the fluids and those of the body they are interacting with. A similar thing applies when one solid body presses against another: the force comes from negatively charged electrons reacting against each other.) Scientific instruments are much better at measuring these forces than are unassisted people. Why can't any instruments measure the 'force' that the diviner claims to feel? In all other fields Man has been able to produce instruments that are more sensitive and more reliable than the Human sense of feel.
  6. The Australian Skeptics Association has a standing US$10 000 prize for anyone who can demonstrate that they can effectively divine water beneath the ground. No-one has ever claimed the prize, although many have been tested after agreeing to the terms of the test. (The Australian Skeptics Web site referred to above also mentions a prize of $40 000, but seems unclear about whether this was a once only, or a standing offer.)
  7. The James Randi Eductional Foundation has a "One Million Dollar Paranormal Challenge" "to anyone who can show, under proper observing conditions, evidence of any paranormal, supernatural, or occult power or event". I believe that this includes water divining/dowsing/witching, but I am not sure on this point.
    Well fed woolly sheep and a full farm dam
    Well fed woolly sheep and a full farm dam. It's a good year at 'Elysium' in the Clare Valley of South Australia.
    Less call for diviners in a year like this.
  8. Then there is the old saying; "If you're so smart, why aren't you rich". If I could reliably divine groundwater I could be a very rich man. I'm sure numerous diviners are just as clever as I am, many would be more clever; why haven't they taken advantage of their skill? As an example, suppose a new mining town requires a water supply in a difficult groundwater area. If I had the skill I could contract to select sites at $2000 for each successful one, while I would pay the drilling costs for any failed wells. The mining company would be foolish not to accept my offer, and I could not fail.
  9. Finally, some say that it has been demonstrated that wells drilled on sites chosen by divining have no better a success rate than those drilled elsewhere. I'd go further, wells drilled on divined sites have a poorer success rate than when the sites have been selected by rational means. See divining success rate below.
  10. There are no skills that come naturally to us and do not need training and practice; are we to believe that divining is unique in this way? We cannot walk, swim, garden, hunt, work wood, work steel, even dig a hole in the ground without learning how. Yet diviners, we are told, just have the 'knack'?
Recommended Internet sites on this subject are:
James Randi and
The Skeptics Dictionary by Robert Todd Carroll. Carroll discusses the Scheune or barn test which some claim proves that there is some scientific validity in divining.

Other questions and curiosities...

A limestone sea cave, South Australia
A limestone sea cave in Southeastern South Australia
Limestone country like this is the only place that you may really find the underground 'streams' that the diviners generally believe are all over the place.
  1. Does the 'force' diviners feel only propagate vertically? Why should it? Why shouldn't it propagate at 45 degrees from the vertical in some places and 60 degrees in others; or in different directions at different times? How can anyone know how it propagates? Yet, in my experience, all diviners assume it propagates vertically.
  2. I met a man who claimed to be able to divine for both precious opals and water. He said that the rods worked for opals in country where you would expect opals and worked for water where you would expect water. I find this incredible (especially when one considers that groundwater can be found almost anywhere). I think it was Pliny who recorded that some people believed they could divine for metals. How do these people learn to discriminate between - for example - water, iron, and aluminium, all of which occur almost everywhere. (Presumably divining rods didn't respond to aluminium until it was discovered. It is now known to be the third most common element in the Earth's crust.)
  3. There are so many different methods. Some people use a forked stick, some use 'L' shaped wires, some (mainly in the USA?) use a pendulum. Some claim to be able to divine over a map - they don't even need to go to the land where the water supply is required.
  4. Some people claim to be able to differentiate between fresh and saline groundwater. Yet how did they learn to recognize a salt stream and a fresh stream? Did they attend a water divining school where they were taken over a known salt stream at one place and a fresh stream at another place so that they could learn the difference? Or is it just some sort of 'gut feeling'?
  5. Others claim to be able to detect moving water, but not still water; apparently they don't know how very slowly most groundwater moves.
  6. One man who claimed to have the gift explained why diviners are never rich with the theory that when any diviner asks money for using his power he looses the power. What a wonderful explanation!
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Some errors of diviners

I believe the following may be of interest as examples of errors that I have heard from those who believe in divining.

Extracts from Geological Survey of South Australia Bulletin No. 23, 1946

Some divining history

From R.W. Raymond in a paper contained in the transactions of the American Institute of Mining Engineers, 1883, and in United States Geological Survey Mineral Resources, 1882, wrote of divining and diviners as follows:
Old divining rods
Divining rods dug out of an abandoned mine and exhibited at Zeehan Mining Museum in Tasmania.
"The Scythians, Persians, and Medes used them. Herodotus says that the Scythians detected perjurers by means of rods. The word rhabdomancy, originated by the Greeks, shows that they practiced this art; and the magic power of Minerva, Circe, and Hermes or Mercury is familiar to classical students. The lituus of the Romans, with which the augurs divined, was apparently an arched rod. Cicero who had himself been an augur says, in his treatise on divination, that he does not see how two augurs, meeting in the street, could look each other in the face without laughing. At the end of the first book of this treatise he quotes a couplet from the old Latin poet Ennius, representing a person from whom a diviner had demanded a fee as replying to this demand 'I will pay you out of the treasures which you enable me to find.'

Marco Polo reports the use of rods or arrows for divination throughout the Orient, and a later traveller describes it among the Turks. Tacitus says that the ancient Germans used for this purpose branches of fruit trees. One of their tribes, the Frisians, employed rods in church to detect murderers. Finally, if we may trust Gonzalez de Mendoza, the Chinese, who seem to have had everything before anybody else, used pieces of wood for divination."

Divining success rate: A major study in NSW, Australia

There is no body of evidence, so far as the writer is aware, so valuable for assessing the claims of divining as that which has been gathered and recorded by the Water Conservation and Irrigation Commission of New South Wales in connection with the shallow drilling carried out for settlers in central New South Wales. The drills are operated by the Commission, and the drill foreman has to report at the outset of the work whether or not the site has been divined. The settlers are not influenced in any way in the fixing of bore sites, and some of them have made their own selection, while others have taken the advice of diviners. From these reports the Commission has compiled the following table, which deals with all the boreholes drilled between 1918 and the end of 1943.
Classification of Boreholes Divined Not divined
Number Drilled Percent Number Drilled Percent
Bores in which supplies of serviceable water, estimated at 100 gall. per hour (approx. 0.12 L/sec) or over, were obtained 1284 70.5 1474 83.8
Bores in which supplies of serviceable water, estimated at less than 100 gall. per hour, were obtained 184 10.1 93 5.3
Bores in which supplies of unserviceable water were obtained 87 4.7 60 3.5
Bores which were absolute failures, no water of any kind being obtained 268 14.7 131 7.4
The districts within which these boreholes were drilled have a yearly rainfall ranging from nearly 30in. (app. 750mm) to under 15in. (app. 375mm) in the extreme west." "The northern part of the area embracing the boreholes lies largely within the Great Artesian Basin, with a consequent material reduction in the risk of failure. Yet it will be seen that the proportion of failures at divined sites is nearly double that at sites not divined, while the percentage of highly successful drillings is far greater at sites not divined than that at the divined sites. The very large number of boreholes embraced in the tabulation corrects the deficiency that has been felt by those who have tried to discuss divining in the light of the records dealing with a small number of cases, some of which may have been selected, and omitting any reference to the failures that must certainly have occurred.

End of extracts for Geological Survey of SA Bulletin

From the table above, one should perhaps call in a diviner to select a site, and then make a point of drilling somewhere else to maximize one's chances of success!

Index

Home

On this page...
Divining history
Divining success rate
Geological Survey of SA
Introduction
It does not work
Other questions and curiosities
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