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A list of Golden Rules for beginer climbers 4-Jan-2007 At 11:38:19 PM PensionerPower

Message

On 31/12/2006 PensionerPower wrote:
>On 31/12/2006 dave h. wrote:
>>- Stolen from a "Climbing" Tech tip: Some helmets like the Edelrid Ultralight
>>have a cavity inside them. You could put together an emergency kit in a
>>Ziploc bag (small bandage, bandaids, maybe a plastic whistle, etc) and
>>tape the bag to the inside of your helmet. (Probably a good idea to keep
>>hard/sharp objects out of it though...)
>
>I remember reading a letter about this suggestion a short time after it
>was published in Climbing. The writer had done a thesis on the protection
>offered by climbing helmets. He strongly recommended against putting anything
>inside a helmet, as this can reduce the helmet's ability to absorb force
>properly during an impact.
>
>I can't find the letter online, but I remember reading it in the printed mag.

Just in case anyone wants to read the original letter, I've found it in Climbing #222, June 15, 2003. From Mark Taylor, School of Textiles and Design, University of Leeds, UK. "...the intial mechanisms in energy absorption are the stretching of the cradle and the deformation of the shell. If this is [these are?] impeded, the force transmitted to the head can be increased dramatically." I won't bother to quote the rest of the letter, it really does not add much more.