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That's fake, which is different than hypothetical.
Originally posted by manmental
I couldn't find this on here ..... a brilliant video of working perpetual motion.... SPOILER: hypothetical !!
Ah so you know it's fake. Hypothetical wouldn't go in the hoax bin, but fake would.
But so this doesn't go into 'hoax'
Yes it's a piece of art from an artist. But I doubt it's perpetual motion, it's probably a hoax just like the first video:
here is a cool contender for some sort of perpetual motion machine...
They don't even work under "no load", so I'm not sure why you're asking about load. The expert that commented in the second video plausibly stated the efficiency might be 90% which is far better than the 30% efficiency a car gets from burning gas. That's quite plausible considering the nature of the metal ball and track, low friction, etc. But to operate under no load it would need 100% efficiency (which doesn't exist), not 90%.
Originally posted by Treespeaker
It might have been said in no certain terms....
How do these machines work under load? Real load?