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. From Ferguson's Lectures edited David Brewster, Ediburgh, 1805

px px dpi = cm x cm = MB
Details

Creative#:

TOP09095728

Source:

達志影像

Authorization Type:

RM

Release Information:

須由TPG 完整授權

Model Release:

NO

Property Release:

NO

Right to Privacy:

No

Same folder images:

Same folder images