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Exploring Geographic and Geometric Relationships Along a Line of Ancient Sites Around the World (cont)By Jim AlisonTHE GREAT PYRAMID AND THE 30th PARALLELThis circle has a different orientation than the previous diagrams and is two inches in diameter. The horizontal axis is the Equator, FC is the 30th parallel, D is 60° North latitude and E is the North Pole. The 30th parallel is exactly onethird of the great circle distance from the Equator to the North Pole, and it is located at exactly onehalf of the height of the Northern Hemisphere. Like the Great Pyramid, the maximum latitude of the line of ancient sites is very close to the 30th parallel. This diagram illustrates that the relationship of the 30th parallel to the circumference of the Earth is the geometric relationship known as the Vesica Pisces. In relation to the lower circumference, DE is at 30° N latitude. In relation to the upper circumference, DE is at 30° S latitude. The ratio between the straight line distance of the 30th parallel and the radius of the Earth is 1.732 to one. 1.732 is the square root of three. Paul Michell and Charles Henry have noted the relationship between the Great Pyramid and the Vesica Pisces. The small circles in this diagram are one inch in diameter, and the large circles are three inches in diameter, forming a small Vesica Pisces circumscribed by a larger one. The triangle in this diagram has the same angular dimensions as the Great Pyramid. The circle in this diagram also represents the circumference of the Earth with the poles on the vertical axis. The radius of the circle is 1.00 inch. The exterior and interior equilateral triangles touch the circle only at the 30th parallels and the poles. The height of each equilateral triangle is 87% of the length of each of it’s sides: 3.00 ÷ 3.46 = .87 1.50 ÷ 1.73 = .87 1.00 ÷ 1.15 = .87 The length of each of the sides of the interior triangles, including the straight line distance through the earth at the 30th parallel, is also 87% of the diameter of the Earth: 1.73 ÷ 2.00 = .87 The radius of the Earth is also 87% of the distance from the center of the Earth to the point of the exterior triangles’ intersections (AP, AQ, AR, etc.): 1.00 ÷ 1.15 = .87 The mile, which is thought to have been developed before the size and shape of the Earth was known, is 87% of the length of the nautical mile, which was developed specifically in relation to the size of the Earth. The nautical mile equals one minute of latitude, so 60 nautical miles equals one degree of latitude and 5,400 nautical miles equals the 90 degrees of latitude between the Equator and the poles. The distance from the Equator to the poles is 6,215 miles: 5,400 ÷ 6,215 = .87 The Greek foot is thought to have been developed independently from the foot, and also before the size and shape of the Earth was known. The foot is 87% of the length of the Greek foot. 
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