a navigable, submersible vessel for exploring the depths of the ocean, having a separate, overhead chamber filled with gasoline for buoyancy and iron or steel weights for ballast.
a submersible vessel having a flotation compartment with an observation capsule underneath, capable of reaching ocean depths of over 10 000 metres (about 5000 fathoms)
“diving apparatus for reaching great depths,” 1947, name coined by its inventor, Swiss “scientific extremist” Prof. Auguste Piccard (1884-1962), from Greek bathys “deep” (see benthos) + skaphe “light boat, skiff” (see skaphoid).
A free-diving vessel used to explore the ocean at great depths. The original bathyscaphe, constructed in 1948, was made of a cylindrical metal float and a suspended steel ball that could hold two people. The float contained gasoline used to lift the vessel, and heavy iron material used for ballast. Design improvements allowed the second bathyscaphe in 1960 to descend to a record 10,912 m (35,791 ft) in the Marianas Trench in the western Pacific Ocean, almost to the deepest level ever sounded on Earth.
A deep-sea research vessel that carries a crew and is free to maneuver independently.
a spherical diving apparatus from which to study deep-sea life, lowered into the ocean depths by a cable. Historical Examples It was not the grapple hooks from his ship, but chains—chains which the man-armed sharks were wrapping around the bathysphere. Astounding Stories, August, 1931 Various It was pried up, and slid off the top of […]
a record made by a bathythermograph.
an instrument that makes a record of the temperature at various depths in the ocean. bathythermograph (bāth’ĭ-thûr’mə-grāf’) A device that records water temperature in relation to ocean depth.
a technique of hand-dyeing fabrics by using wax as a dye repellent to cover parts of a design, dyeing the uncovered fabric with a color or colors, and dissolving the wax in boiling water. the fabric so decorated. to hand-dye (material) using the technique of batik. Historical Examples May sat down on the couch among […]