I was looking for a video showing how the device worked... didn't find anything good, but this one is interesting anyway! https://www.youtube.com/watch?v=lpkqdb

I was looking for a video showing how the device worked... didn't find anything good, but this one is interesting anyway! https://www.youtube.com/watch?v=lpkqdbz1R_s https://www.youtube.com/watch?v=lpkqdbz1R_s