Doug B
Footballguy
Work's a bee-yatch today ... too bad we didn't get rolling yesterday when I was playing Free Kick Expert all day :X
Here's my pick:
1.5 (5) - The Great Pyramid of Giza, Building/Structure
Great detail shot
Also known as the Pyramid of Khufu and the Pyramid of Cheops. It is the last of the ancient Seven Wonders of the World still standing. The pyramid remained the tallest man-made structure in the world for over 3,800 years.
Here's my pick:
1.5 (5) - The Great Pyramid of Giza, Building/Structure
Great detail shot
Also known as the Pyramid of Khufu and the Pyramid of Cheops. It is the last of the ancient Seven Wonders of the World still standing. The pyramid remained the tallest man-made structure in the world for over 3,800 years.
The accuracy of the pyramid's workmanship is such that the four sides of the base have a mean error of only 58 millimeter in length, and 1 minute in angle from a perfect square. The base is horizontal and flat to within 15 mm. The sides of the square are closely aligned to the four cardinal compass points (within 3 minutes of arc based on true north not magnetic north). The completed design dimensions, as suggested by Petrie's survey and later studies, are estimated to have originally been 280 cubits in height by 440 cubits in length at each of the four sides of its base. These proportions equate to π/2 to an accuracy of better than 0.05% which some Egyptologists consider to have been the result of deliberate design proportion. Verner wrote, "We can conclude that although the ancient Egyptians could not precisely define the value of π, in practise they used it". Petrie, author of The Pyramids and Temples of Gizeh, who was the first accurate surveyor of Giza and the excavator and surveyor of the Pyramid of Meidum, concluded: "but these relations of areas and of circular ratio are so systematic that we should grant that they were in the builders design." Earlier in the chapter he wrote more specifically, that: "We conclude therefore that the approximation of 7 to 22 as the ratio of diameter to circumference was recognised"
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