Are crop circles the work of alien visitors? Are they a natural phenomenon? Are they elaborate hoaxes perpetrated by some very dedicated humans?
Formation at Ogbourne St. George in Wiltshire
There are many theories for their existence:
- Whirlwind Vortex
- Plasma Vortex
- Earth Energies
- Extra-Terrestrial Origin
- Underground Archaeological
- Chemical Applications (no longer considered)
- God Force
- Military Experimentation
Crop circles are not just circles -- they can come in many different shapes. The most basic (and the most common) crop circle is the single circle. Circles may also come in sets of two (doublets), three (triplets) or four (quadruplets). Circles also may be enclosed in a thin outer ring.
Some of the more sophisticated patterns are based on mathematical equations. Astronomer and former Boston University professor Gerald S. Hawkins studied several crop circles and found that the positions of the circles, triangles and other shapes were placed based on specific numerical relationships. In one crop circle that had an outer and an inner circle, the area of the outer circle was exactly four times that of the inner circle. The specific placement of the shapes indicates that, whoever the circlemakers are, they have an intricate knowledge of Euclidean geometry (the geometry of a flat surface introduced by the mathematician Euclid of Alexandria).
Crop circle near Silbury Hill in Wiltshire, England, that resembles an Aztec Sun Stone.
This formation was discovered in Eastfield, England, in June 2004. An article in the Western Daily Press called the design "uncannily similar to plans for one of Nikola Tesla's early pieces of equipment."
Formation at Avebury Trusloe in Wiltshire.
Crop circle at West Kennett in Wiltshire that looks like a Celtic symbol called the Triskell.