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[at-l] distress signals



Yelling does have disadvantages, as vocal cords get worn out, and the
calory use can be significant for a cold person in mild hypothermia.
Hence the idea of a whistle, even at a tenth of an ounce.

Bill...

--- saunterer@jimbullard.org wrote:
> ...  From a really practical standpoint, exhaling 3 
> times costs nothing and didn't add to the pack weight going in.
> 

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