TV-PG
S6 • E27 Jul 12, 1999 44m7.9
In antiquity, a hollow reed served as an underwater link to oxygen. As in days of old, humans still need self-contained breathing equipment for a variety of reasons–food-gathering, commercial, recreational, military, and scientific. Dive with the best as we test scuba diving’s past, and look to a future of mechanical gills.
