The American naturalist Charles William Beebe (1877-1962) set a world record in 1934 when he made a dive to a depth of 923 m below the surface of the ocean. The dive was made in a device known as the bathysphere, which was basically a steel sphere 4.75 ft in diameter. Suppose the bathysphere and its occupants had a combined mass of 1.30
The American naturalist Charles William Beebe (1877-1962) set a world record in 1934 when he made...