Almost 2000 years before Newton, Archimedes wrote "Any object, totally or partially immersed in a fluid or liquid, is buoyed up by a force equal to the weight o

Almost 2000 years before Newton, Archimedes wrote "Any object, totally or partially immersed in a fluid or liquid, is buoyed up by a force equal to the weight of the fluid displaced by the object." The ancients knew a fair bit.