In the 1930s, a French ironmonger and pendulum-
dowsing author,
Antoine Bovis, developed the idea that small models of pyramids can preserve food. The story persists that Bovis, while standing inside the King's Chamber of the
Great Pyramid in Egypt, saw a garbage can inside the chamber piled with dead animals that had wandered into the structure, noticed that these small carcasses were not decaying and inferred that the structure somehow preserved them. However, Bovis never claimed to have visited Egypt. In his self-published French-language booklet Bovis ascribes his discovery to reasoning and experiments in Europe using a dowsing pendulum: In 1949, inspired by Bovis, a Czechoslovak named Karel Drbal applied for a patent on a "Pharaoh's shaving device", a model pyramid alleged to maintain the sharpness of razor blades. According to the patent (#91,304), "The method of maintaining the razor blades and straight razor blades sharp by placing them in the magnetic field in such a way that the sharp edge lies in the direction of the magnetic lines." Drbal alleged that his device would focus "the earth's magnetic field", although he did not make it clear how this would work, or whether the device's shape or materials exerted the effect. Drbal's contention that razors could be sharpened or have their sharpness maintained by alignment with Earth's magnetic field was not new. In 1933,
The Times carried letters claiming, "if I oriented my razor blades... N. and S. by the compass... they tend to last considerably longer" and "The idea of keeping razor blades in a magnetic field is not quite new. About the year 1900 I found this out". Sheila Ostrander and Lynn Schroeder, authors of the paranormal, visited Czechoslovakia in 1968, where they happened upon a cardboard pyramid manufactured commercially by Drbal. They met Drbal, and dedicated a chapter of their popular 1970 book
Psychic Discoveries Behind the Iron Curtain to pyramid power. This book introduced both the concept of pyramid power and the story about Antoine Bovis to the English-speaking world. == Origin of the term ==