Kidney stone

May 23, 2008 - 5:01am

The next time you fly, soak a terrycloth hand towel so that it’s dripping wet and hang it up on the flight deck. Then fly a leg that’s at least an hour-and-a-half long. At the end of that time, the towel will be bone dry, the water absorbed by the ultra-low humidity of the cockpit and cabin environment.

 
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