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Here is an interesting question that I just received from a colleague
concerning the breathing problems faced by scuba divers. The
errors concerning the causes of narcosis are obvious but what is
a better explanation of the phenomena?
In Science Links, vol. 14, page 45, there's a discussion of partialI suspect the percent here means percent of the normal pressure at a
pressures, some of which I'll quote here:
"Ordinary air is about 21 percent oxygen and 78 percent nitrogen. Under
water, each gas exerts its own pressure, independently of the other.
That means the compresed air that a diver breathes at 10 meters actually
has 42 percent of the total pressure due to oxygen alone. That's