SEALAB 1 was the U.S. Navy vessel created to conduct underwater exploration. In addition to doing deep-sea experiments, the psychological strain of isolation on humans was also investigated. Shaped like a ginormous dildo, the craft and its four crewmen were lowered into the waters off the coast of the Bahamas in 1964. Embedded is a short Navy doc about a voyage that would have delighted Jules Verne. Jackie Cooper hosts.