On: The Physics of Scuba Diving

[hunter2_]

Instinctually (well, once you overcome the most naive instinct of holding your breath) one might think they need to exhale fast enough that the expansion of volume in the lungs doesn't outpace the rate of exhalation, but in reality even the slightest bit of intended exhalation will keep the airway open enough to prevent lung issues, right?

[orestis → hunter2_]

Yes, the point is to keep the airways open, but that’s hard to demonstrate hence the suggestion to “make a stream of small bubbles as you ascend”

[jahnu → hunter2_]

That was what I was taught at least when I learned recreational diving.