Bathyscaphe
A bathyscape or bathyscaphe is a self-propelled deep-sea diving submersible, consisting of a crew cabin similar to a bathysphere suspended below a float filled with a buoyant liquid such as petrol. Auguste Piccard, inventor of the first bathyscaphe, composed the name bathyscaphe using the Greek words "bathos" (depth) and "skaphos" (ship). The first bathyscape was FNRS-2, built in Belgium by Piccard. Propulsion is provided by battery-driven electric motors. Piccard's second bathyscaphe was Trieste, and was purchased by the US Navy in 1957. In 1960 Trieste set an unbeatable world record by diving to the bottom of the Challenger Deep, deepest point in the Mariana Trench and believed to be the deepest point in the world's oceans. See also Timeline of underwater technology.
External links US Navy account of the dive, with photographs another account of the dive
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