Free Articles Archive
Pulley efficiency seems initially like a simple thing to measure, however it presents an excellent opportunity to consider various aspects of experiment design. Experiment design At face value it would seem that we could simply set up
There is a standard language used in the technical specifications of carabiners but this is not well understood. This article is an attempt to clarify some common markings that appear on carabiners. It should be noted that
Rescue tripods ‘falling over’. Natural, improvised, and purpose built high directionals are used to manage loads over edges and through openings. They can make otherwise impossible tasks possible. There are now many proprietary solutions with almost limitless configurations that are
We are seeing an interesting collision of techniques: Standard triangular pyramid tripods used for confined space rescue, Asymmetrical multi-pods used for technical rope rescue and rope access, and Powered winches. Confined space operators have long been using
