The solution? A pulley system to make everything easier. The concept is simple. [Barnso]’s system uses three pulleys. The headphone cable goes to the PC, and then runs over the first pulley.
This Roman wooden pulley system was found at Bar Hill Roman Fort, Strathclyde, Scotland and was picked by Christina Gilfedder, second year student at the University of Glasgow (Single Honours ...
All moving parts work on some sort of mechanism ... making pulling down easier than lifting up. Single pulley systems can be seen in cranes, lifting a bucket from a well, raising a flag or ...