Country:
Age:
Period:
Type:
Location_getLoc:
Latitude: 36.550000
Longitude: 9.450000
General description:
along River Medjerda, horizontal wheeled mills : two triple helix-turbines
at Chemtou and Testour two helix-turbine mill installations of almost identical type, each with three mill-races
date: late 3rd or early 4th century AD
General notes / Footnotes:
the horizontal wheels, must have had angled blades, rotated wholly submerged in a sort of artifical whirlpool,
not designed again untill 16th centruy in Spain.
Require only 2m drop which allowed mills to turn even the water level was very low during summer time.
Lat_orig:
36.55
Long_orig:
9.45