[HN Gopher] Mechanical Engineering in Ancient Egypt, Part XII: S...
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       Mechanical Engineering in Ancient Egypt, Part XII: Stone Cutting
       (2016) [pdf]
        
       Author : walterbell
       Score  : 12 points
       Date   : 2022-06-28 08:12 UTC (1 days ago)
        
 (HTM) web link (scholar.cu.edu.eg)
 (TXT) w3m dump (scholar.cu.edu.eg)
        
       | walterbell wrote:
       | Faster link to PDF:
       | https://web.archive.org/web/20220506071023if_/https://schola...
       | 
       |  _> This paper presents the 12th part of a series of research
       | papers aiming at studying the development of mechanical
       | engineering in ancient Egypt. It presents the techniques and
       | technology used by ancient Egyptians to cut hard stones and
       | produce very complex artifacts. The ancient Egyptians used stone
       | saws, drills and lathe turning and invented instrumentation to
       | generate flat surfaces with accuracy better than 0.005 mm and
       | measure dimensions from 1.3 mm to 10 km._
       | 
       | Photos of the Serapeum of Saqqara (Egypt, 14th century BC), with
       | multiple sarcophagi each carved from a single block of granite
       | weighing dozens of tons,
       | https://www.gettyimages.com/photos/serapeum-of-saqqara &
       | https://en.wikipedia.org/wiki/Serapeum_of_Saqqara
        
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       (page generated 2022-06-29 23:01 UTC)