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American aquanaut Berry L. Cannon dies of carbon dioxide poisoning while attempting to repair a leak in the SEALAB III underwater habitat. The SEALAB project was subsequently abandoned.
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Berry L. Cannon
American aquanaut who died in a diving incident (1935–1969)
Berry Louis Cannon was an American aquanaut who served on the SEALAB II and III projects of the United States Navy. Cannon died while attempting to repair SEALAB III. A U.S. Navy Board of Inquiry concluded that Cannon died of carbon dioxide poisoning, and that his diving rig's…Source: Wikipedia (CC BY-SA)
SEALAB
Experimental underwater habitats developed by the United States Navy
SEALAB I, II, and III were experimental underwater habitats developed and deployed by the United States Navy during the 1960s to prove the viability of saturation diving and humans living in isolation for extended periods of time. The knowledge gained from the SEALAB expeditions…Source: Wikipedia (CC BY-SA)
February 17
Day of the year
February 17 is the 48th day of the year in the Gregorian calendar; 317 days remain until the end of the year.Source: Wikipedia (CC BY-SA)