One end of the rope can be tied to a load ... Can you try to reduce friction in your pulley? For example, try using an empty spool of thread as a wheel. How does this change your results?

Can you make an elevator out of a spool of thread ... wheel that is free to turn its center. A rope or other material runs over the top of it. The pulley in this experiment is a single fixed ...

The team selected a machine from Finland's Heitech Oy that eliminated the need for the operator to manually guide the wire rope onto the spool, a major safety factor. The machine is also self ...