A Conversation for How a Pump Works
Some minor questions
jqr Started conversation Oct 21, 2000
I was reading the Hypatia of Alexandria entry http://www.h2g2.com/A397596, and the Researcher mentions the Archimedes Screw in passing. Is this a pump? I think it might be because it is used to move water against the pull of gravity. Another question I have has to do with air pumps, like a bicycle tire pump. It moves air not water, so does that make it really a fan? I am a little confused about whether that kind of piston pump is covered by your entry.
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Some minor questions
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