Many fire departments provide much more than suppression activities in the emergency services, including technical rescue. In the world of rope rescue, the rescue team still has to move a victim up, ...
In the world of rope rescue, we use mechanical advantage systems really for two reasons. The first being a force increasing tool and the second, a means of reducing the weight of a load during a ...
Hosted on MSN
Simplest self-braking pulley
This experiment shows how a basic pulley system can be designed to brake itself, demonstrating clever mechanics with minimal components. First reading: The mother of all unintended consequences is ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback