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Originally posted by flexy123
While this is indeed fascinating to look at (for a layman, non-engineer like me) - there is no doubt that the energy for driving the motor is not "free".
I just don't like how those youtube posters use the word "free" if its obviously not.
This device could even be less effective than a normal stove, in terms of energy required to move the magnets and then heat the copper pipe.
If your an engineer then you will realise that you could keep the magnets stationary and rotate a thin copper disc at high rpm above them and the power needed to do this would be very small...no its not free, I never titled the vid and neither did the man who made it.
Originally posted by LUXUS
Originally posted by flexy123
While this is indeed fascinating to look at (for a layman, non-engineer like me) - there is no doubt that the energy for driving the motor is not "free".
I just don't like how those youtube posters use the word "free" if its obviously not.
This device could even be less effective than a normal stove, in terms of energy required to move the magnets and then heat the copper pipe.
If your an engineer then you will realise that you could keep the magnets stationary and rotate a thin copper disc at high rpm above them and the power needed to do this would be very small...no its not free, I never titled the vid and neither did the man who made it.
Originally posted by Char-Lee
reply to post by LUXUS
Friction heat accumulates even by a turning metal of any kind if you lay anything on it right? I mean if you have a spinning metal anything and even put a piece of wood on it the wood burns. The way he is doing this to make the heat, caused by friction, the copper pipe would wear out and need more and more copper pipe?
Ah never mind I see the pipe is not touching the wheel right?
Originally posted by LUXUS
Originally posted by flexy123
While this is indeed fascinating to look at (for a layman, non-engineer like me) - there is no doubt that the energy for driving the motor is not "free".
I just don't like how those youtube posters use the word "free" if its obviously not.
This device could even be less effective than a normal stove, in terms of energy required to move the magnets and then heat the copper pipe.
If your an engineer then you will realise that you could keep the magnets stationary and rotate a thin copper disc at high rpm above them and the power needed to do this would be very small...no its not free, I never titled the vid and neither did the man who made it.
Scale it up and use water to rotate it
It would be far more efficient using direct mechanical energy to heat copper via a water wheel.
Originally posted by Phage
reply to post by Sovaka
It would be far more efficient using direct mechanical energy to heat copper via a water wheel.
I'm not so sure.
Friction loss with the generator and spinning the copper (or magnets) wouldn't be any different.
Magnetic "drag" would be the same for either system.
I think an electric heater would be at least as efficient at producing heat from a DC (or AC) current as would a chunk of copper with internal eddy currents.
So the only difference would be the run of wire between the generator and the heater. I think it would be pretty much equivalent.