Seriously now� if noise is a form of energy� then the waves made by noise should be able to be converted into electricity� I think this is a very good and clever concept� Never thought of it this way� Abhinav, you might be onto something here� If you ever make money out of this, please remember your supporting fan!!!
I think what abhinav was trying to say was 'can we convert noise to a use-able energy'. Yes we can but the level of noise would have to be huge to power just light bulb for a few seconds.