An Experiment with compass needle

[vineet_kiran]

A simple method to tap magnetic field energy

[lumen]

Can't work, if you tried to draw work from the needle to the disk, then the disk would rotate harder. Not free!

[vineet_kiran]

Can't work, if you tried to draw work from the needle to the disk, then the disk would rotate harder. Not free!

If needle is straightaway connected to disk  then obviously disk rotation becomes harder because the disk and needle rotate in opposite directions.   Energy from the rotating needle has to be drawn out separately may be by mounting a  generator on needle shaft and energy from this generator should be supplied to central shaft by means of motor fixed to central shaft.

[lumen]

If needle is straightaway connected to disk  then obviously disk rotation becomes harder because the disk and needle rotate in opposite directions.   Energy from the rotating needle has to be drawn out separately may be by mounting a  generator on needle shaft and energy from this generator should be supplied to central shaft by means of motor fixed to central shaft.

Yes, but what does the generator connect to? One side is the needle and the other side is .......?

How about to another needle on the other side of the wheel and a figure 8 belt connecting them. That way one needle will work against another needle.

[vineet_kiran]

Yes, but what does the generator connect to? One side is the needle and the other side is .......?

I didn't  understand your question.  My idea is like this.  Please see the attachment.