Steorn is back, and it is still hawking its perpetual-motion machine, the Orbo. We spent several carefree days back in the summer of 2007 ridiculing the whole project, which purported to use spinning ...

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I didn't get an invite to the grand Steorn unveiling of its Orbo technology, but at the moment the doors were opened to the public in Dublin today, a ZDNet UK reader popped in and started relaying ...

Perpetual motion devices are either a gag, a scam, or as in the case of this particular toy that [Big Clive] bought on AliExpress, a rather fascinating demonstration of a contact-free inductive ...

Let's start with a water wheel in still water with an electric generator hooked up to it. Let's say it has a ratchet wheel so it can only turn in one direction. I want to calculate the probability ...