I have tried to show the particle effect rotating, it is actually, but for some reason doesn't look that way, also for the rotation to show you would need to have a longer lifespan of particle but then the particle begins to drift outside the space which is not ideal. Particles are very difficult to make and edit. as for the operating sound it has an operating sound currently.

I know the rocessor has sounds I haven't heard any from the reactor itself. Not that I noticed anyway. It may be just overcome by the othe sounds. Anyway nice work.