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Measuring the plot for the Great Pyramid
The Great Pyramid is 147m from the ground to the top and each side of the base is 230m long. The Egyptians positioned the sides of the pyramid facing north, south, east and west. They did not have compasses so archaeologists believe that they used the stars as a guide. They used the circumpolar stars that circle the North Pole of the Earth. The Ancient Egyptians also used a cubit rod to measure out the sides of the pyramid. With thanks to "WGBH TV". This clip has subtitles available in Flash.
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