A Dowsing Demonstration by Edge
1 Introduction
My mate and I planned a mid-May vacation in northern California in the vicinity of where Edge
(hereinafter Mike) lives. Before leaving, he and I exchanged phone numbers and we were finally
able to contact each other. So on Thursday, May 18th late in the afternoon, Mike and his brother,
Danny, drove to where I was staying and we spent a couple of hours dowsing. My sincere thanks
to Mike and Danny for going a considerable distance out of their way on very short notice in order
to meet with us and conduct this demonstration.
Mike had a specific goal in mind for this demonstration, namely, to ascertain whether his dowsing
had to be calibrated for different dowsing locations (more on what “calibration” means below).
My main goal was to get a definitive understanding of kind of test Mike is proposing because I
could not get a clear picture of it from his postings on the JREF forum. Secondarily, I wanted to
do an informal test to see how it would go. And, finally, I wanted to meet “edge” because he
seemed to be an interesting guy.
2 Preliminaries
After introductions and a brief discussion of Mike’s background, we began with Mike just
dowsing in the general area of our cabin. I asked what he thought was “forcing” his dowsing rod
and, after some discussion, it turns out he thinks that somehow gravity is affecting what he is
dowsing for and that his dowsing rod picks up this change in gravity. As an aside, I would note
that Mike (edge) in person is very much reflected in his postings. He could not, in my opinion,
articulate a clear explanation of his “theory” of dowsing.
At one point, Mike offered to have me dowse. I declined. But I did put my finger along the
dowsing rod as he did some dowsing. He does grip the dowsing rod quite firmly.
3 Demonstration
As I mentioned, this was not a well planned, formal test. We did not know until the earlier in the
day when we met that we would even be able to get together at all. So everything we did was
done in an ad hoc manner.
First, I’ll describe the equipment that Mike and Danny brought with them then I’ll describe the
testing protocol we established and subsequently conducted.
3.1 Equipment
“Equipment” is a too highfaluting word for what we had to work with - but please don’t
misinterpret my comment. We had what Mike could muster up at a minutes notice and I had
little but pen and paper to add to the mix. As mentioned above, this was ad hocracy at its
finest.
Mike brought with him:
• His dowsing rod
• A silver tray
• A large cardboard box
• A small scale typically used to weigh envelopes in order to ascertain the correct
postage to use.
The best picture I have
of his dowsing rod is
shown in Figure 1. I
had my friend with the
camera take a close-up
picture of the rod itself
but that picture, sadly,
seems to have been
lost.
The dowsing rod is a
“carefully selected”
(quoting Mike) branch
from a willow tree.
The “head” of the rod
is about 9 inches long
w h i le the two
branching limbs are
about 24 inches long.
The tip of the head of the rod is wrapped in black electricians tape. When queried about this,
Mike indicated that the tape holds a USA dime to the dowsing rod. As I understand it, this
dime, in combination with the dowsing rod itself, is what allows Mike to detect gravity
changes. In response to a
question by my friend with
the camera, Mike stated
that if he removed the
dime, this same dowsing
rod would then become a
more traditional water
dowsing rod.
The silver tray (shown
on the right in Figure
2) would become the
t a r g et o f o u r
demonstration. Mike
brought this tray
Figure 1
Figure 2
because he had found it in a hidden location at his sister’s house using this dowsing rod so he
knew that it would affect his dowsing.
The cardboard box was used to conveniently carry Mike’s equipment but it also served as a
component of our demonstration (see the next section). By the way, the “arms” of the
dowsing rod are visible above the plastic drain pan.
The scale is shown in
Figure 3. It measures
the downward force
exerted by whatever is
attached to it. It is a
simple, mechanical
device; its most
import ant characteristic
relevant to
this test is that the
reading marks are not
linear. The indicator
runs from 0 to 90
d e g r e e s wh i c h
indicates a force of
from 0 to 4 ounces.
But 1 ounce is at 45
degrees, 2 ounces is at
67.5 degrees and 3
ounces is at 79.25
degrees and 4 ounces
(its limit) is at 90
degrees.
3.2 Demonstration Protocol
In broad terms, the protocol consisted of these steps:
• Selecting a demonstration site
• Setting up the equipment
• Defining the demonstration process
• Pre-trial calibration
Figure 3
• Trials
• Post-trial calibration
3.2.1 Selecting a demonstration site
First, Mike needed to verify that the porch of our cabin was not contaminated by
anything that would affect his work. He walked along the porch area while dowsing and
stated that there was nothing under the porch that would interfere with his efforts.
3.2.2 Setting up the equipment
This step was critical for me to achieve my goal because I was finally able to see and
understand what Mike is actually proposing for the MDC.
First, Mike hung a (bent out of shape) ordinary coat hanger from a beam in the roof of
the porch. The hook of the coat hanger hung at the lowest point which you can see at
the very top of Figure 3. As shown in that figure, the scale was directly attached to the
coat hanger.
A thin, light string, (barely) visible at the bottom of Figure 3, hung down from the scale.
A loop at the bottom of this string was used to attach the head of the dowsing rod to the
scale.
The targets of the dowsing are shown in Figure 2. The “target” is the silver tray. The
“dummy” was a RubberMaid drain pad taken from the cabin kitchen. The cardboard
box was used to disguise which item was in the target area by placing the target inside
the box.
3.2.3 Defining the demonstration process
After brief discussions, we agreed upon a protocol that would have either the target or
dummy put in the box outside of Mike’s view. Mike would then dowse for the target
using the scale as an indicator of its presence or absence. Each trial would have Mike
state without equivocation whether the target was there or not. There would be ten
trials.
Before the trials began, there would be two calibration trials in which Mike would know
whether the target was there or not.
3.2.4 Pre-trial calibration
In Mike’s presence, I put the dummy target in the box and Mike dowsed. Danny would
stand to Mike’s right on the ground just off the porch as seen in Figure 4 (although he
was not standing there when this picure was taken.) And read off the scale reading.
When the scale stabilized, it read ¼ ounce. This took about 15 seconds (based on my
memory alone - I did not have a stopwatch with me). Figure 4 shows Mike while
actually dowsing.
I then put the tray in the box in Mike’s presence and he dowsed again. This time the
stabilized scale reading was 1 ounce.
Note that this process was central to meeting Mike’s goal. He reports that similar trials
in other locations have resulted in a dummy reading of 3 ounces. Thus, Mike concludes
that the calibration of his dowsing process is site specific.
3.2.5 Trials
Out of sight of everyone, I flipped a quarter 10 times. I decided before starting that
heads would equate to dummy and tails would equate to target.
For each trial, Mike and Danny would go back behind the cabin as we put either the
dummy or the target in the box. I stood where I could see both Mike and Danny at the
rear of the cabin while my mate made the placement to make sure there was no way they
could see what she was doing. In fact, in one trial, she purposely dropped the trey on
the porch while putting the dummy in the box to see if Mike was using a sound clue.
Since I observed each trial, this was only a single-blind experiment. That is me in the
foreground in Figure 4.
Each trial proceeded with Mike doing the dowsing and Danny reading off the scale
value as sort of a running commentary, like a race track announcer. In fact, to me it
seemed as if Danny was encouraging Mike to get a high value.
Figure 4
After the scale reading stabilized, the trial would end and Mike stated clearly “dummy”
or “target”. Interestingly, the time to stabilization increased as we went through the
trials; note, again, that this is a subjective judgement because I did not have a stop watch
with which to time each trial. At first, it seemed that stabilization would occur within
15-30 seconds. By the end, it was taking about a minute. A couple of times Mike
would have to stop, shake off his tension and resume the dowsing.
After the fifth trial, Mike was getting fatigued so we took a couple minute break. This
fatigue consists of his having to stand perfectly still during each trial and having to grip
the dowsing rod firmly in each hand. I have no doubt that this effort is, in fact,
fatiguing.
Here are the results:
Trial In Box Mike Result
1 Dummy Dummy True
2 Dummy Dummy True
3 Dummy Dummy True
4 Target Target True
5 Dummy Dummy True
6 Dummy Dummy True
7 Dummy Dummy True
8 Target Target True
9 Target Dummy False
10 Dummy Dummy True
By this series of tests, Mike scored 90% correct.
3.2.6 Post-trial calibration
After this series of trials, we did one more calibration test with Mike knowing the tray
was in the box. He correctly stated it was there.
4 Post-Demonstration Activities
After this set of trials, we did some “fun” dowsing just for the hell of it. These activities have no
probative value but I report them here for completeness.
Since Mike asserts that he is detecting metals (not just gold) I asked him to dowse my car. He did
for a couple of seconds by holding the dowsing rod over the trunk of the car. The rod did not dip.
We then walked down by Coffee Creek (a vigorously flowing stream at this time of year due to
snow melt) which is just out of sight over the spare tire of Mike’s vehicle in Figure 1. Mike’s
dowsing revealed that there were several locations where gold existed. Interestingly, when doing
this dowsing, the rod responded instantaneously and dramatically by dropping to near vertical.
I should note that this area was extensively hydraulically mined for gold in the 1800s. In fact, not
100 yards upstream there is a huge (30 feet high by 100 feet long) rock pile left over from
previous mining operations.
5 Notes
I offer these in no particular order of importance to give my full sense of this demonstration.
5.1 Demonstration
I have used the word “demonstration” here instead of “test” deliberately. I do not consider
this exercise to have been a test in the sense that Randi would use the term. My goal, as
stated, was simply to get a better understanding of what Mike asserts that he can do by
actually observing the dowsing process that will, presumably, be the basis of his current
MDC.
Expanding on that thought, I had not been able to get a clear sense of what Mike is actually
proposing he can do with his dowsing based on his posts on the JREF forum. Now that I have
seen Mike in action, I have a much better appreciation of what he claims to be able to do. I
hope I have conveyed a clearer idea of how he proposes to be tested in this document so that
we can focus on the MDC test protocol.
5.2 Mike
My impression of Mike in person very much reflects what you see on-line. He is a voluble
guy who has trouble putting his thoughts in clear order. We’ll have to deal with that fact.
5.3 Demonstration Protocol
There are so many holes in the protocol that we used that RoadToad could drive a truck
through it. Did the cardboard box have a hole in it? Was Danny somehow giving clues to
Mike? Did the trey (which I did not inspect at all) have a magnet in it?
5.4 Decision Criteria
The calibration phase established a background “force” of ¼ ounce and a target force of 1
ounce. Yet, in nearly all the trials, these benchmarks were ignored. Many times (no, I did not
write down the final stabilization reading) the scale read 2 ounces or above yet Mike would
declare (correctly) that the target was not there.
During one trial (#7, I think) Mike declared that the rod was “just not grabbing” him like it
had done before so, in spite of the scale reading he (correctly) declared that the target was
absent.
In retrospect, I was really stupid to not get Mike to state - and adhere to - his decision criteria
before we actually began the trials..
5.5 What’s going on?
I will offer two distinct impressions of Mike (and Danny).
I conclude Mike really believes that he can dowse. Danny is most certainly a believer so that
ANY test that involves him must be rejected out of hand. Mike can, in a wink of an eye,
explain away any inconsistency and just plow ahead as if he is actually dowsing.
My mate, however, was absolutely furious with me regarding this whole episode. She was
convinced that Mike and Danny ran a scam on me and that I was a total fool to even let the
whole experiment proceed. She’s convinced that Mike (and Danny) are scammers of the first
order and knowingly made an absolute jerk out of me.
Who knows?
6 Photos
I did adjust the photos contained in this report in order to show as much detail as possible.
This manipulation merely consisted of using the standard image adjustment tools in Corel’s
Paint Shop program. I have the originals and would be happy to make them available should
anyone want them.