https://www.youtube.com/watch?v=dGPnxLSgnUI
Interesting video
Take it out to where there are little to no radio waves or microwaves and most likely do nothing. But it is a very good example of tapping into energy that is in the air. kind of like the the razor blade radio kids use to construct in the past. Large scale wouldn't work IMHO.
Still a great toy.
Alan
You all are way behind. This one was examined and put to bed months ago.
Ive had a pendulum swinging for many years. Of course its powered by what i call a home made water battery. But so long as there is plain old water in the battery, it will run for many many many years to come. You can check out some of my vids on these things at https://www.youtube.com/stevensrd1 (https://www.youtube.com/stevensrd1)