The bathysphere was used for transportation where?
In AntarcticaIn Antarctica
2%Under the seaUnder the sea
95%Built by zoologist William Beebe and engineer Otis Barton, the bathysphere was a steel sphere with portholes in the side that was suspended by a cable from the side of a boat. Weighing 5,000 pounds with a diameter of 5 feet, it took two explorers to a depth of 1,300 feet during its first launch in 1930. Four years later, it reached 3,000 feet. The bathyscaphe, which was developed in the mid-20th century, has since gone deeper, and is considered safer and more maneuverable.
Source: Britannica