Buoyancy tersely: Buoyancy = weight of displaced fluid. Archimedes' principle does not consider the surface tension (capillarity) acting on the body, but this additional force modifies only the amount of fluid displaced and the spatial distribution of the displacement, so the principle that "Buoyancy = weight of displaced fluid" remains valid. The weight of the displaced fluid is directly proportional to the volume of the displaced fluid (if the surrounding fluid is of uniform density). In simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or
Legend of the Leather Bridge Legend of the Leather Bridge There is a legend of the Leather Bridge () in several regions of Germany and Switzerland. The word "lederne" could also have meant "ladder" or "lantern". According to legend, there was once a leather bridge crossing the Elmstein valley between the Palatine castle of Erfenstein, high above the left bank of the Speyerbach river, and a second castle, Spangenberg, on the opposite side of the valley. Two brothers, or at least two close friends, who visited each other frequently, decided to build the bridge in order to avoid having to take the difficult path through