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Home > History and Archaeology > History > Life and Work at the Great Pyramid During the Months of January, February, March, and April, A.D. 1865; With a Discussion of the Facts Ascertained Volume 2
Life and Work at the Great Pyramid During the Months of January, February, March, and April, A.D. 1865; With a Discussion of the Facts Ascertained Volume 2

Life and Work at the Great Pyramid During the Months of January, February, March, and April, A.D. 1865; With a Discussion of the Facts Ascertained Volume 2


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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1867 edition. Excerpt: ...been the angle given by the incline formed by two horizontal and one vertical, then such foot angle of Pyramid should be 53 7' 48." Inclination of entrance-passage by Howard Vyso, = 26 40' 18 Do. observed by F. Ayrton, with a theodolite at top of passage, and a Limp placed at bottom close to subterranean chamber, = 2G 41 0 Do. computed on supposition of being the in-cline formed by two horizontal and one vertical, = 26 33 54 INCLINATION OP GRAND GALLERY (ASCENDING PASSAGE). Measured by M. Jomard in 1800, .. = 25 55' 30' Howard Vyse in 1837, . = 26 18 0 P. Ayrton in 1841--by measurement of a base and perpendicular, ... = 25 17 36 by measurement of a hypothenuse and perpendicular, .. = 25 42 53 The combinations from linear proportions are very curious, particularly the result of double the angle of the sloping passage, derived from two horizontal to one perpendicular equalling the angle of inclination of the face of a Pyramid, whose height is 2-3ds of its base (length of side of base). I am persuaded that this view of the subject deserves consideration.1 (Signed) F. Ayrton. Cairo, th January 1865. 1 The above is little more than a hastily written memorandum, or short extract, out of a lengthy paper on the subject commenced by its author many years ago, but apparently never completely finished. Yet in as far as it goes, that paper, of which I was kindly allowed a reading, shows so perfect a comprehension of all the methods and details of mathematical mensuration, and such unflinching honesty, that Pyramid literature has lost much from the memoir not having yet been published. Pyramid literature, however, I would suggest, rather than our knowledge of the ancient form of the Pyramid; for the subject having been pursued perhaps too...


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Product Details
  • ISBN-13: 9781236505842
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 78
  • Spine Width: 4 mm
  • Width: 189 mm
  • ISBN-10: 1236505840
  • Publisher Date: 01 Jun 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 154 gr

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Life and Work at the Great Pyramid During the Months of January, February, March, and April, A.D. 1865; With a Discussion of the Facts Ascertained Volume 2
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Life and Work at the Great Pyramid During the Months of January, February, March, and April, A.D. 1865; With a Discussion of the Facts Ascertained Volume 2
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