If you’re pulling on pulleys, multiplying the power of your polyester,  performing a panoply of pick-offs, or trying to find a towel to wipe the spit off of your computer screen from reading so many “P” words in row; take a look at the videos below. They are each a description of how pulley systems work and are in order from simple concepts and explanations to a little more involved. You might know this stuff cold or it may be a good review. Either way, watching these videos is a fun and easy way to make sure all of the people on your team a staying fresh on pulley systems.

This first video is from the old Bill Nye the Science Guy show. If the opening cartoon brings you back to your youth, you can also look for “I’m Just a Bill” from Schoolhouse Rock. It must have been the same animator. Thanks to Phil Box at Rope Test Lab for posting a link to this

A little up the food chain is this classroom type demonstration from New England Rope:

Here is Pat Rhodes going over his 5 rules for a Mechanical Advantage system.

http://www.youtube.com/watch?v=4J7Qk-atJbs

This last lesson for the day is Pat explain how to stagger your compound Mechanical Advantage systems so that they collapse at the same time:

http://www.youtube.com/watch?v=LOwZe8jDiag