Rudiger Koch spent around four months in a 322.9-square-foot capsule 36 feet below the surface of the water.
Source : Aerospace Engineer Lives Underwater for 120 Days, Setting New World Record
Rudiger Koch spent around four months in a 322.9-square-foot capsule 36 feet below the surface of the water.
Source : Aerospace Engineer Lives Underwater for 120 Days, Setting New World Record
