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Syndicate
| Simple Machines |
Type |
|---|---|
| Horse Collar | Image |
| Photographophone Receiver | Image |
| Archimedes screw 2 | Image |
| Rotherham plough | Image |
| Sumerian Potter's Wheel | Image |
| Pulley | Image |
| plow Egypt 1920 BC From a tomb at Beni Hasan | Image |
| Horse Yokes, Collars and traction | Image |
| Ancient Plough | Image |
| man-and-lever.jpg | Image |