They're sending the bathyscaphe down unmanned, to test all apparatus before a manned dive.
I'm talking about the bathyscaphe that ought to be in Manila any day now.
Why assume that whatever attacked the bathyscaphe did it of its own accord?
The yacht seemed to tiptoe away from the scene of the bathyscaphe's destruction.
"The Pelorus says she'll be ready to send the bathyscaphe down for a test dive in two hours," he reported.
And maybe you should tell them about the Pelorus and the bathyscaphe.
"I'm trying to picture myself going down in a bathyscaphe," said Terry hastily.
The yacht went past no more than fifty yards away, just as the bathyscaphe left the water and swung clear.
The bathyscaphe had cost more money than is usually allotted to most scientific researchers, and now it was smashed.
"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.