Algodoo

the script on the laser is horrendously wrong... it should be

e.geom.density = 10

If you're a geometry and you want to refer to another geometry you use other simply because both of you are geometries
But if you're something that's not a geometry and you wanna talk about a geometry you have to use e.geom, and lasers are not a geometry

The motor has too little use, because you make it run on pulses. You should make it this way:

First put simulation frequency on 120 Hz
Now add a laser with the onLaserHit script

e.geom.attraction = 50

And copy it, and change the 50 with a 0. But what you should do is change the attraction of the ROTOR, not the STATOR (rotor being the 4 magnets that spin, and stator being the 2 that are static)
I reccomend using multiple of 3 magnets (Try with 6 or 12 magnets there)
Make one of the magnets have attraction 50 and the other one, -50. This way if your rotor magnet has attraction 50, it will be repelled and attracted, and if it has -50, it will be attracted and repelled

Put the lasers in a way that the rotor magnets change polarity when they are close to the stator magnets

And there you have an obscenely powerful motor. P.S. I'm pretty sure POV is not an Algodoo term...

OK,thanks for your tips.I just wanted to say that I still don't really understand
scripting too well,I just had an idea.
But thank you very much for the part where you explain how to change objects that aren't solid objects (if it's that what you were talking about)
And with POC (not POV) I wanted to say "Proof of Concept" :]