Making a Powerful Lego Hoist (re-edit)

6 old videos re-edited into one.
The aim is to make one Lego motor (Power Functions Medium) pull a weight scale with great force using only Lego parts and a string. The video demonstrates mechanical advantage in the form of gear reduction and pulleys. Enjoy!

Original vids:
pulleys https://www.youtube.com/watch?v=KUjVby8H-bQ
gears https://www.youtube.com/watch?v=umN2iHsw3UY
pulleys+gears 1 https://www.youtube.com/watch?v=slv5fvS6e9Q
100kg https://www.youtube.com/watch?v=pvE83NfbZ8g
pulleys+gears 2 https://www.youtube.com/watch?v=bWgTRHH656Y
rock https://www.youtube.com/watch?v=Ra2enBbzwWQ