Damrongsak Wirasaet of Mishawaka, Indiana, crushed my brain puzzle posed in a TNB on June 18. Wirasaet correctly noted that if you have an 80-meter rope and want to climb as high as possible, and lower off twice, that your first anchor would be at 60 meters, letting you lower 20 meters to a second station at 40 meters. From 40 meters, a doubled 80-meter rope would get you safely to the ground. Wirasaet is an assistant research professor in civil engineering at the University of Notre Dame. He started climbing five years ago, and read Clip and Go, a little book John Long and I co-authored.
For his prize, Wirasaet shall received a signed copy of Clip and Go, and a pair of Petzl Ascension ascenders. Use them safely my friend.
Stay tuned for more Brain Puzzles, guaranteed to make you a safer and smarter climber or your money back.
Don't want to use Facebook, but still want to comment? We have you covered: