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In theory, the technique is quite simple. All you have to do is hold the fork, whether made of wood or another material, with your palms facing upwards, applying a little pressure to bend the ends outward. When the tip of the dipstick moves, you are running over groundwater. Well, at least that’s what supporters of the so-called radiesthesia believe, a word that means «sensitivity to radiation» in its Greek origin. “This works because all people have the ability to subconsciously perceive ambient radiation, such as that produced by moving water. They generate muscle impulses that end up being reflected in the pitchfork”, says Sérgio Areia, president of the Brazilian Association of Radiesthesia (Abrad).
The problem is that science to date has not been able to prove whether this technique really works. Even so, those who believe in the method believe that people can improve their natural sensitivity to the point of making increasingly accurate discoveries. It would be possible, for example, to establish the depth of the water table from the number of times the pitchfork moves. Skeptics doubt. “Since it’s not difficult to find water at depths of up to 200 meters, it looks like the method works. But we’ve already done several experiments and the pitchfork never worked”, says engineer Daniel Sottomaior, from USP. It is also worth remembering that, until now, no one has managed to measure the magnetic field that emanates from moving water, nor to demonstrate that human sensitivity to this radiation really exists.
Object would indicate the magnetic field of groundwater, which science cannot prove
1. Fans of radiesthesia, an occult science that investigates the supposed human sensitivity to radiation, say that moving water is capable of forming an electromagnetic field. It would be so weak that it is impossible to measure it by conventional devices. But it can be perceived with the help of the pitchfork
2. All of us are supposed to have an unconscious ability to sense sources of radioactive energy and to detect hidden electromagnetic fields. This energy would be captured by biosensors, not yet identified in the body, which in theory would transmit the information to the body’s muscles.
3. The muscles would start to make movements imperceptible to the naked eye. The dipstick would make these microvibrations visible, indicating the location of an underground water table. According to the defenders of the technique, whoever handles the pitchfork is able to associate this movement with the presence of water with 100% accuracy after some time of practice.