The Oceans as Battlefield (1 ene 1872 año – 1 ene 1876 año)
Descripción:
The Sonar allowed scientists to use sound waves in order to measure the oceans depth. On the Challenger Expedition, the crew threw a 200LB weight on rope. They waited until it reached the bottom of the seafloor and than measured the rope length.
Añadido al timeline:
History of Oceanography Timeline
fecha:
