When visiting one of the rainwater harvesting project sites, questions came up of how to supply those parcels with water, where there is only a hut with a thatched roof – in these places usually the most needy people live. After some discussion back and forth an archaic solution was brought up and displayed in a similarly archaic way: by drawing it with a stick in the sand.

On another topic: Tyler Monson has given me notice about a glitch in the post “More Things Green”: green the image was indeed, too green. I’ll correct this. Thanks, Tyler!

Teaching Archimedes’

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