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A comment on Underwater breather has raised $800k+ despite being scientifically impossible.

Re:Underwater breather has raised $800k+ despite being scien... by tantalor on Tuesday March 29, 2016 @11:27AM (#11382134)
The last update promises they will post a longer demo video soon. Maybe the whole 45 minutes?

If the device in the old video (https://youtu.be/obqxzmmv7uM) is fake, how did it work? Where did the air bubbles come from?

[ Parent | on HN ]
Re:Underwater breather has raised $800k+ despite being scien... by jlg23 on Tuesday March 29, 2016 @11:43AM (#11382290)
The initial ones could come from the lungs of the person.

When you do a free dive you pump your lungs full of air and gradually release that air over the course of the dive. A trained swimmer can easily swim without breathing for 50 meters, producing air bubbles all the time. (EDIT: active swimming, aiming for distance. I had to do this when I got my lifeguard certification - IIRC 25m sufficed to qualify, but everyone did 50m).

That video is unfortunately way too short to prove anything.

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