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James Randi Educational Foundation

An Encyclopedia of Claims, Frauds, and Hoaxes of the Occult and Supernatural

Introduction | "R" Reading | Curse of the Pharaoh | End-of-the-World Prophecies

Index | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | Y | Z

pyramid inch A unit of measurement proposed by Charles Piazzi Smyth, a Scottish astronomer who was obsessed with the Great Pyramid of Giza, which see. The original outside “casing” layer of stones that had covered the Great Pyramid had been carted away over the ages, so that the true dimensions were unknown until investigators began finding a few of the stones buried at the foot of the structure. Smyth measured the first casing stone that was uncovered, divided the width by twenty-five (the reason for choosing 25 was never given), and obtained what he called the basic unit used in the pyramid's construction, the pyramid inch. This was just slightly greater than the English inch.
      Though it was soon found that other casing stones measured different widths, Smyth's definition was retained by believers in the myth, and it is still used today by those who accept that the Great Pyramid is a tool of prophecy.

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Copyright (C) 1995-2007 James Randi.

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