February 26, 2020 04:33PM
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Registered: 19 years ago
Posts: 1,989
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Many thanks Graham.
Dorner’s drawings raise questions that leave the base side length open.
Petrie measured along the bottom edge of the casing that rested on stone blocks (Petrie’s pavement):
”The south pyramid, according to this survey, was originally of the following shape and size upon its pavement surface" Petrie 1887: 28
"upon its pavement surface" clearly states where Petrie measured his base side length of 189.459m. He then used a cubit of 526.3mm to convert 189.459m to 360 cubits, but if he had used a cubit of 523.7mm (used in Khufu’s sarcophagus chamber), the length would be 362 cubits.
Dorner’s stated measurement along the same level is 360 cubits which using his cubit length of 523.3mm converts to 188.483m, which is just under a metre (0.976m) shorter than Petrie’s 189.459m - such a large difference is unexpected - how do we explain this discrepency?
Dorner’s base side length taken from 75cm below the pavement surface and between the lower edge of the casing at the corners is 189.43m which is virtually identical with Petrie’s 189.459m length taken from a level 75cm above Dorners.
Could it be that Dorner simply trusted that Petrie’s stated 360 cubit length was reliable, and only measured the 75cm lower line between the bottom edge of the corner casings that Petrie had not measured? I noticed that on Dorner’s drawings these measurements are given in cubits except for one, 362 cubits, where in brackets he states the measurement in metres (189.43m). The cubit he must have used to convert 362 cubits to a metric measure is 523.3mm (189.43m / 362 = 0.523.3m) So Dorner is using a different length cubit than Petrie’s 526.3mm which complicates things.
Chris
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