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A Hoard of Greek Coins from an Automatic Holy-water Machine in Egypt?

Mechanical inventions seem to have been quite popular among the elite Greek [and later] Roman populations of Egypt. During the time I was working at the Phoebe Hearst Museum at Berkeley, I came a cross a hoard of Greek coins – … Continue reading

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Intercropping in upland Burundi, central Africa

Intercropping in upland Burundi. Banana, manioc, maize, amaranth, etc, are regularly intercropped by smallholders.  This is a traditional method of augmenting soil fertility and porosity, and of assuring seasonally appropriate crops. As well, problems of  brief, radical climate shifts are … Continue reading

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