Don Bowen wrote:
>Only if the bottle expands. Pumping in 10% more air or even taking it
>out will have little affect on the buoyancy of the bottle. That is
>dependent on the weight of the water displaced.
Indeed. I have one other error to correct. Make that a half-pound of
buoyant force for each bottle that's tied to a given float, since a pint, not
a cup, is a pound the world 'round.
Bill