Neat build to generate electricity

https://content.instructables.com/ORIG/F3I/DLBR/L471K3FC/F3IDLBRL471K3FC.jpg?auto=webp&frame=1&width=320&md=ebb7014e9e5ebedade0ef4db007791ef

Nice idea on how to build a simple device that uses gravity to convert things to electricity (of course you have to lift up the weight first). Could be a nice school poject.

https://www.instructables.com/INSERT-NAME/