amid worries about the levels of oxygen present in the vessel.
Rush saw a way to use advances in materials sciences to craft a new type of sub — one that would be oblong, rather than spherical, and made with carbon fiber, which he said, had a better strength-to-buoyancy ratio than titanium. The design would carry five people and would give scientists and deep-sea adventurers alike more room — the few privately owned subs in the world could only carry two or three people at most.
In September 2018, Rush piloted Cyclops 1 on an expedition in Washington's San Juan Islands with researchers and scientists. The expedition included seven dives over five days to observe the feeding strategies of deep-sea red urchins, document the habitat of Pacific sand lances, and assess possible impacts of scientific trawling on the ecosystem.
In his speech at the Seattle tech conference, Rush described how various submarine safety programs were “over the top in their rules and regulations,” but they had no experience with carbon fiber.
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