TRIESTE:
THE BEGINNING OF DISCOVERING
On 23 January 1960, the Swiss-designed bathyscaphe Trieste, originally built in Italy
and acquired by the U.S.Navy, descended to the ocean floor in the trench manned by Jacques Piccard (who
co-designed the submersible along with his father, Auguste Piccard).
Their
crew compartment was inside a spherical pressure vessel. Their descent took almost five hours and
the two men spent barely twenty minutes on the ocean floor before undertaking
the three-hour-and-fifteen-minute ascent. Their early departure from the ocean
floor was due to their concern over a crack in the outer window caused by the
temperature differences during their descent. The measured depth at the bottom
was measured with a manometer at 10,916 m.
Lt. Don Walsh, USN (bottom) and
Jacques Piccard (center) in the bathyscaphe Trieste.
More info about the person: https://en.wikipedia.org/wiki/Jacques_Piccard
More info about the person: https://en.wikipedia.org/wiki/Jacques_Piccard