Title
Archimedean Screws for raising water from one level to another
Caption
Archimedean Screws for raising water from one level to another. The 'thread' could be either external (as in Fig. 3), or the more conventional internal spiral in Fig. 2.
1805
From "Ferguson's Lectures" edited David Brewster
Edinburgh
Date
1805
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP07094_390000528
License type
Rights managed
Available size
46,2Mb (4,1Mb) / 15,0in x 12,0in / 4500 x 3587 (300dpi)