Radiesthesia

Radiesthesia describes a physical ability to detect radiation emitted by a person, animal, object or geographical feature. One of its practitioners, J. Cecil Maby, defined it as "The faculty and study of certain reflexive physical responses of living tissue to various radiations ... resulting in displacement currents and other inductive effects in living tissues." He distinguished it critically from the psychic facility of divination. Despite this distinction, there is no scientific evidence for the existence of the phenomenon and it is classed by the mainstream as pseudoscience.