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Skip Dahlgren's avatar

I saw a camel-driven mill for grinding sesame seeds to oil in Barentu, western Eritrea in 1972. The mill consisted of a large mortar made from a hollowed out olive wood trunk & a pestle also made of olive wood, resting in the mortar, to which was connected a long counterweighted pole to which a camel was harnessed. As the camel walked around the mortar, the pestle would slowly press oil from the sesame seeds. There was no way of determining how ancient this technology was, but nearby I saw a shadoof, an implement that dates to ancient Egypt, being used for irrigation.

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