2018-06-21-1315Z


someone has finally designed and commercially built a dual-valved snorkel, something I've been contemplating for years but haven't come up with a prototype. now someone needs to take it to the next level and extend it with long hoses to a surface unit with a dive flag, and people will be able to snorkel to any arbitrary depth.

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last updated 2018-06-21 09:19:49. served from tektonic