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brewnog
Science Advisor
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I'll do it! I have development, research and manufacturing facilities. I'd be more than happy to develop your prototype!
brewnog said:I'll do it! I have development, research and manufacturing facilities. I'd be more than happy to develop your prototype!
yes. It is not exactly energy conservation involved here.cronxeh said:perpetual motion is impossible. from laws of thermodynamics:
You could always "bleed off" the extra energy - if, for example, the output is 100W more than the input, you can add a resistor (a light bulb) to turn that 100w into heat, bringing the sysem into equilibrium.amwbonfire said:I've just reread the thread, and it seems we're only looking at machines that increase energy output as time goes on. So the machine would eventually break down (due to overheating, etc.) And there's no way you could stop it, because it just keeps getting faster, and the amount of force needed to stop it increases.
Well, it started as a legitimate discussion of why perpetual motion isn't possible. Its kinda meandered though. But I don't know that the crackpottery level is high enough to close it.Nereid said:What is this thread doing in Engineering (other than provide amusement to some readers)?!? :grumpy:
Didn't I read that there's been a bit of a change in how the site guidelines are implemented here at PF?
russ_watters said:You could always "bleed off" the extra energy - if, for example, the output is 100W more than the input, you can add a resistor (a light bulb) to turn that 100w into heat, bringing the sysem into equilibrium.
amwbonfire said:The energy output is continually increasing. You'd need to keep adding more and more lightbulbs forever...
rdt2 said:Perpetual motion? No problem!
Perpetual motion machine? No chance!
-- Dr. Lee De Forest, inventor of the vacuum tube and father of television.Man will never reach the moon regardless of all future scientific advances.
maps said:-- Dr. Lee De Forest, inventor of the vacuum tube and father of television.
Never say never. Never say impossible. Every one of today's advances in science were all considered "impossible" by the scientific elite of the past. Instead of denying it, why don't you present day scientific elite (geniuses :rofl: ) work on it?
To expand on what enigma said, what you have here is a very common misunderstanding of the difference between science and technology (engineering). Dr. Forest would certainly not have claimed that space travel violated the laws of physics. Same goes for the commonly cited "sound barrier" issue. These and others are engineering problems that many scientists/engineers/inventers never thought we'd solve.maps said:-- Dr. Lee De Forest, inventor of the vacuum tube and father of television.
Never say never. Never say impossible. Every one of today's advances in science were all considered "impossible" by the scientific elite of the past. Instead of denying it, why don't you present day scientific elite (geniuses :rofl: ) work on it?