Actions of a Very Weak Magnetic Gradient: The Reflex of the Dowser

  • Y. Rocard


The way in which the dowser holds his divining rod (Figure 1) is common knowledge, although few people have tried it themselves. Whether the dowser really gets signals coincident with the presence of water is a very controversial question. In all events it appears undeniable that above-ground dowsers obtain, when certain physical conditions are present, a signal which is the involuntary upward or downward movement of the firmly held rod. It is independent of their will if they are employed solely in maintaining their grip. The interpretations of this signal in terms of water are very doubtful. Nevertheless, a correlation with the presence of water is manifested quite often.


Magnetic Field Magnetic Anomaly Living Matter Magnetic Gradient Controversial Question 
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  1. 1.
    Rocard, Y., Le Signal du Sourcier, Dunod, ed., Paris, 1964.Google Scholar
  2. 2.
    Abbe de Vallemont, L. L., Occult Physics; or a Treatise on the Divining Rod, Paris, 1693.Google Scholar
  3. 3.
    Rocard, Y., Science Progres-La Nature, No. 3343, pp. 468–472, November, 1963; (see also reference 1).Google Scholar

Copyright information

© Plenum Press 1964

Authors and Affiliations

  • Y. Rocard
    • 1
  1. 1.Laboratoire de PhysiqueÉcole Normale SupérieureParisFrance

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