A friend is currently partaking of hyperbaric O2 treatments and needs
to keep his mind off of the somewhat confined space.
One of his diversions was to try whistling.
Doesn't work.
His PhD is in Chemistry so he obviously had no clue as to WHY he
couldn't whistle at 2.4 atm of O2.
I assured him that the lack of N2 probably isn't a factor and
suggested that he try changing things like the size of the lip
pucker, volume of the mouth, speed of the wind etc.
Any other suggestions for a fellow curious soul to try??
He was a wrestling coach for a while - so maybe he could try that the
extremely loud and obnoxious 'two finger' whistle technique.