According to our knowledge of thermo dynamics not only can you not get more from a system than you put into it, you cannot even get close (Carnot). There have been supposed perpetual motion machines in the past but they were usually fraudulant attempts to fool the punters out of their money; a little man hidden in the works cranking a handle. I do remember reading about a big ben type clock in Britain that was claimed to be perpetual motion as it ran for 150 years without any visible energy input. But one day it stopped and required servicing. The engineers discovered that it ran on variations in atmospheric pressure so it was essentially solar powered. I’m not sure if this was just legend, but it is a good story.
A friend of mine, seemingly an intellegent person, suggested that if you connect a generator to the driving wheels of an electric car you should be able to power the drive motor from that and do away with the batteries. After I picked my jaw off the ground I spent a good hour trying to get him to understand something about energy – not sure I succeeded.
On the day this thread appeared there was a link at the top of the page to a perpetual motion site that I followed and it described a magnetic machine of truely huge proportions that generated massive amounts of power from nothing! I don’t think so – unless it taps into some unknown and hitherto undiscovered source of Universe energy. In the mean time I will sceptically stay with Sadi Carnot.
Mark
Edited By Mark Smith 3 on 15/02/2010 06:02:02