Underwater Diving Technology

Underwater Diving Technology groups the engineered equipment that lets a person descend below the water's surface and work, explore, or travel there for an extended time. The class spans self-contained breathing apparatus such as the aqua-lung and closed-circuit rebreather, surface-supplied gear built around the historic diving suit and diving bell, a simple snorkel tube for shallow breath-hold work, and the pressure-resistant diving bell descendants built for the deep ocean, the bathyscaphe and the bathysphere, alongside the submarine as a crewed underwater vehicle. Wikipedia's Underwater diving article frames the activity as descending below the water's surface to interact with the environment and describes the diving bell as one of the earliest types of equipment, with scuba and rebreather systems as its modern extension; this grouping gathers the atlas's own invention-type entities that realize that activity.