JF Ptak Science Books Quick Post
This remarkable flying machine was patented by N.H. Borgfeldt (of Brooklyn, NYC) on 1 October 1889. It really seems to be not that much more than the rowing-section part of a Roman galleon, except that it is in the air; there are five "rowers" int his aircraft, plus someone to operate the rudder. And a flag.
This certainly is not the most effective way of using human muscle, even in an odd application like this one:
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