As far as the bottle-and-bikewheel in the OP, and suspending disbelief for a moment, it clearly doesn't want to accelerate beyond the speed we see it running at in the video. This means that it is "producing" only enough power to match the losses at that speed, since there is no regulating mechanism at all other than those losses due to bearing friction, windage, sloshing, etc. Consider what will happen when it is connected to the hand-crank flashlight that clearly takes some work to turn. The wheel will rapidly grind to a halt. Now resuming our judgement that it is a hoax driven by an external power source of some kind, we still have the same problem. The external source isn't providing enough power for it to accelerate. So for it to turn the crank on the flashlight, the external power source will have to be increased, and/or the coupling of the external power to the wheel has to be improved to overcome the additional drag of the generator. Many commenters seem to think that it is powered by a fan or leaf-blower, and the audio track is dubbed in. Maybe that's how it's done, I don't know. I don't think the video is looped but it could be, by someone with more skill at video editing than I've got. The video does seem clear enough so that a fine fishing line drive might be detectable. It's a mistake to believe that just because the visible part of the apparatus is simple and crude, that the method of fakery is also simple and crude. In fact this is a common trick used by illusionists all the time. Pretend to be clumsy and inept, use crude construction, and the audience will not consider just how difficult and sophisticated the real method is. But in this case... I'll wager that the trick is pretty simple, like the off-camera leaf blower + dubbed soundtrack. The thing is easy enough to build. Who among us will be the first one to do it? Not I .... 
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Topic: Claim of a perpetual rotating wheel using salt water and gravity (Read 3179 times)
