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Who else remembers the animated discussions when Petzl released the GriGri in the early 1990’s? Petzl used marketing phrases like “For the Best Belay Job You’ll Ever Have!”, and old school climbers scoffed with comments along the
We often build anchor systems by linking multiple anchor points. There are many ways to do this, however one common technique involves clipping a long sling to each point and then combining each bight with a big
This study has been prompted from a few directions but the key questions are: What is the force required to initiate tearing on some common shock-packs? Does this value change if the unit is wet? Can shock-packs
The Transport Hitch can be used to tension and hold a load in a limited set of scenarios. It is an interesting study of physics and it helps us to understand the importance of friction. This knot
Pendulums present an interesting study of physics for rope technicians. A simple pendulum is made up of a point mass suspended by a string or rod of negligible mass. In rope systems, the mass of the swinging body
