Van der Waerdon, Science Awakening, opp. p. 16
In spite of Gillings claim that rope stretching
is not attested in Ancient Egypt, we find this
illustration in Van der Waerdon, showing a
painting of the tomb of Djerserkere-sonb
at Thebes, from the 18th Dynasty, (1567-1310 B.C.)
Ralph Abraham, 15 April 1996.