ALTERNATIVE ENERGY FORUM - etc.

I made this awhile back, I can't remember if I posted it or not.
It's a magnet strength meter made from a clear plastic cassette tape box and a permanent magnet.
It measures relative magnet strength just so you can compare magnets and identify the poles.
It cost less than a dollar to make.

https://www.dropbox.com/s/920d0dksuc46tbz/vid_20220130_141113064.mp4?dl=0