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Ask HN: Is it possible to blow up a balloon while you’re under water?

• notRobot 6y ago
  First search result: https://van.physics.illinois.edu/qa/listing.php?id=14253&t=is-it-possible-to-inflate-a-balloon-with-air-underwater https://van.physics.illinois.edu/qa/listing.php?id=14253&t=i... Consider using search engines in the future.
• simonblack 6y ago
  Depends on the air-pressure in the lungs. If you inflate them from a scuba tank, possibly. If you take a breath and then jump in the water, no.
  • matt_the_bass 6y ago
    If on scuba this is trivial. I do it all the time for training.