

This way you would see the light but none of the particles would get out,if you say light is a mass of particles bouncing around.
Martins getting very near to what type of perpetual motion I was thinking of. I'm Thinking something like a two half surface,which can be put together with a disc inside,done by having the doughnut ring shape on the outside,held inplace by the inner hole space,with a drive spindle hole in the centre. Into the outer doughnut ring space on the flat disc edge you would have lots of facing away half cone shapes particles catchers,close to the inner surface,with the light sourse on the otherside.
This is what I see will work,after the two outer halfs have been put tightly together and sealed,leaving only the drive spindle sticking out,with the disc inside being able to spin freely.
To start the whole thing off,we use some sort of light,this I believe would start the disc turning,as the light goes round and around inside the tube. Thus making some form of contact with the disc edge,which I believe will then turn the spindle to drive something with the help of some magnets,what do you think.
This design of mine should cut out lots of the problems with drag,lose of light,slowing down,and maintenance. Something like a spinning top,spinning inside a shell of the same shape,driven by light and a magnectic field. May this idea give power to the people. John.J.R.P.