The only problem is that the light would be at the top of
the drop while the caver is on the bottom!
Mark
At 10:53 AM 1/17/2013, Ted Samsel wrote:
And at the end of the abseil/rappel, sunt lux!
http://arstechnica.com/science/2013/01/kerosene-lamps-face-gravity-powered-usurper/
Please reply to mmin...@caver.net
Permanent email address is mmin...@illinoisalumni.org
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