Deepest submersible dive (Ocean)
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10,916 m (35,814 ft) - Bathyscaph Trieste (Project Nekton) - 23 January 1960, Challenger Deep (Mariana Trench), Guam (Deepest known point on earth). Hydrostatic pressure: 16,000 PSI (1,089 ATM). Occupants: Dr Jacques Piccard (Switzerland), Lt. Donald Walsh, USN
PSI: Pounds per square inch
ATM: Unit of pressure roughly equal to the average atmospheric pressure at sea level on Earth.
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