Newtonian reaction of down and back. However, it is assumed
that when the vessel is moved down there is more friction with
water so less reaction back. Then the mechanism moved the weight down
and back, causing a Newtonian reaction of up and forward.
Again, it is assumed that when the vessel is moved up there
is less friction with the water so more reaction forward. The scheme
produced
a net forward thrust. It was written that the device was used to dock
ships. The mechanism seemed overly complicated. Consider
that it may be done with just a rotating mass at the end of a stick,
with rotation in the vertical plane. Maybe those of you with animation
skills could make a simulation. Maybe those of you with building
skills could make one.
Lawrence
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