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Thread: Artificial gills - how?

  1. #1 Artificial gills - how? 
    Forum Bachelors Degree CEngelbrecht's Avatar
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    May 2011
    Scania, Sweden
    Found a website some time ago, that claimed to have figured out how to make a gismo that allowed you to breathe oxygen from the surrounding water, and they were seeking crowd funding to get it on the market. Sounded very exciting, however, a quick readthrough of the claimed principle showed it as a massive hoax, trying to steal mo money from the gulliple of the world.

    But... just out of curiosity... could it be made to work? Like, you put on some kind of stormtrooper helmet, which then diffuses oxygen in and diffuses excess carbon dioxide out into the surrounding water, allowing you to breathe inside an air bubble constantly being automatically kept at set levels of O2 and CO2 (and N2?), and then you could be under water as long as you like, with limited bulky equipment and no gas limit from a SCUBA tank.

    Would there still be issues of decompression sickness and nitrogen narcosis, is what I can't figure out right now. And how deep would you be able to go before physics would still kill you? Tens of meters? Hundreds? Thousands? Provided that the diffusion issue could even be solved.

    (A game I played recently, where your character wore a helmet and could stay under water indefinitely.)

    Last edited by CEngelbrecht; December 21st, 2017 at 09:22 AM.
    "The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge, and there's no place for it in the endeavor of science. (History) shows us clearly that accepted and conventional ideas are often wrong, and that fundamental insights can arise from the most unexpected sources."
    - Carl Sagan, 1980

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