Pros and cons of permanent magnet motors

[WilbyInebriated]

Go look up some basic physics concepts.  Power is the rate at which work is performed.  The rubber band causes nothing to move, therefore it is powering nothing.

IF the rubber band was NOT wound by some external input of energy, like your hands... then no work would have been done. however the rubber band did NOT magically appear prewound on the pencil did it? if nothing wound the band on the pencil then no force would be being exerted...
your analogy is weak and perverted, perhaps instead of telling me to look up basic physics concepts you should work on your analogy concepts...
obviously no work is performed according to the strict definition. duh...
a magnet holding a 1 kilo weight is performing no "work", while an electromagnet holding the same weight IS performing work?

[WilbyInebriated]

Similarly, what powers gravity?

similarly? not really.
when things, caused by gravity, fall/descend/move, then work is being performed by your definition...

[AB Hammer]

 Well I went ahead a posted my first magnet wheel since 1974. I call it The Unpredictable Wheel.  It is a non runner but it is kind of interesting. It will run one way and the stop and run the other or it just stops. In the video I bumped it when it looked like it was going to run backwards. I built this wheel to get use to magnets again. And now I am getting better test set up.

http://www.youtube.com/watch?v=zjEsGZfkCRA

[ragnew]

Hammer,

I was looking at your You Tube Videos.
I saw this one.
http://uk.youtube.com/watch?v=Qpx6ECQhD8E

You call it a NON worker but it looked pretty good in the video?


Rich

[nwman]

I'm not sure if this is why but.... If you notice the arm in the upper right hand corner reaching behind and turning the wheel.

Tim