|
 |  Photo collection by Th.Schiöler Water-lifting by draught animals Gearwheel with eight cogs Photo 91 |
| Gearwheel with eight cogs |
 |
 | |
| Water-lifting wheel in operation in Syria about 1980 This huge water lifting wheel is powered by a donkey walking round and round. The donkey can be seen between the vertical shaft and the wall on the right. Two of the eight cogs may be seen on the vertical wheel. [91] |