Rope stretcher
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In ancient Egypt Rope stretchers were surveyors who measured property lines and foundations using knotted cords which they stretched in order to take the sag out of the rope. As far back as the palettes of Narmer and the Scorpion King the Egyptians document the process the royal surveyors used to restore the boundaries of fields after each innundation or flood.
Rope stretchers used 3-4-5 triangles and the plumet, which are still in use by modern surveyors. The plummet can be used with a square ruled off into intervals on tongue and blade to get a unit rise and run or angle when taking an elevation to a distant point as with a modern sextant.
Rope stretching technology spread to ancient Greece and India, where it stimulated the development of geometry and mathematics.
[edit] See also
[edit] External links
- rope stretchers
- surveying instruments
- proportions "The knowledge of pleasing proportions of the rope stretchers was incorporated by the Greeks"
- Sangaku and The Egyptian Triangle