Archimedes' Screw, a device used to raise water from one level to another. An Archimedes' screw consists of a helix, or spiral, fitted inside a cylinder that is open at both ends. In use, the lower end of the device is placed under water at a slant and a handle, attached to the helix, is turned. As the helix revolves, small amounts of water are slowly raised in wells formed by the side of the cylinder and the surfaces of the helix. The Archimedes' screw was developed in ancient Egypt and, it is believed, improved by Archimedes (287?-212 B.C.); it is still used occasionally in the Middle East. The device can also be used to lift loose materials, such as grains.
First there was Volvo. Then came IKEA. Well get ready for the next major Swedish export: snus, a smokeless tobacco product, similar to dip or chew.
Imagine walking through a field and stumbling upon scads of corpses, all in various states of decomposition. It's not the setting for your next nightmare, but rather a very real discipline of forensic anthropology.