As I said, the English language needs a range of words for a "perpetual motion machine". Everyone has a slightly different concept of what "perpetual motion" means. Cox did not hide the energy source of his clock. It ran on changing atmospheric air pressure. And as long as the Earth and its atmosphere remain, and Cox's clock does not wear out, it will continue to run. So in that respect, Cox's clock is a true perpetual motion machine as defined in Cox's vocabulary.ovyyus wrote:Not quite. Cox specifically called his clock a true perpetual motion machine. Bessler also specifically called his wheel a true perpetual motion machine.jim_mich wrote:Cox called his clock a "perpetual motion machine"...
A false perpetual motion machine might be one that is impossibly trying to get something for nothing, in the classical sense of the ages old attempts at gravity/inertia PM. Gravity and/or inertia PM have proven false to date.
Bessler said his wheel was turned by the motions of weights. This, assuming it is true, would indicate that it could also continue to run until it wore out.
Where is the line to be drawn? Science says the line for perpetual motion is absolutely no input of energy while the machine puts out at least enough energy to keep itself running. If a gravity powered wheel were found to work, this definition would eliminate the wheel from being a perpetual motion machine, for gravity would be its source of energy. And if Bessler's motion powered wheel were found to work, this scientific definition would eliminate his wheel from being a perpetual motion machine, for it also would have a source of energy. In both cases, current science would say they are impossible without physical proof.
So, as I said, the English language needs a range of words for a "perpetual motion machine", else, every time we say "perpetual motion", we need to say which version of PM we are talking about. I once wrote here on the forum about "classical perpetual motion" as being any machine that is capable of maintaining self-rotation within an enclosure that blocks all tangible forms of energy. Cox's clock would not meet such a definition. Assuming Bessler's wheel was as he claimed, then Bessler's wheel would meet such a definition, at least according to all that we know. It was actually demonstrated to work. The only question is the details of how it worked.
As to a false perpetual motion machine, if it does not work, then it is not a perpetual motion machine. If it does not work then it is only a PM scheme or proposal, and as such I suppose it could be called a false PM machine.
So, as I said, the English language needs a range of words for a "perpetual motion machine", but it does not have that range of words. Pure scientific PM is impossible. Environmental PM like Cox's clock is possible, but we would then need to include windmills and solar panels, which most would not consider to be PM.
What we on this forum are looking for, and which most would label as PM, is a wheel that self-rotates from only the result of physical mechanical movement of weights. This is considered impossible by science, but Bessler's wheel seems to indicate it is possible. Or Bessler was a fraud and both Bessler and Karl were liars. The historical records seem to indicate that Bessler's wheel was a true PM machine as we on this forum would defined a PM wheel. That is, it was self-contained and able to self-rotate for an extended period of time, which according to Bessler would be until the end of time or until it wore out, and which was proven to be at least 2 weeks and 4 weeks, one immediately after the other, for a total of more than 6 weeks.