Water proof Dictaphone for the shower. I have some of my best ideas in the shower but no way of recording them - so either a water proof dictaphone or water proof writing equipment would be great.
Walkman with adjustable body strap, they probably have these but it'd be great if you could get adjustable straps for your ipod etc so you could easily strap them to your, waist, thigh wrist etc.
Piano with no black keys, all notes white with labels for the numbers 1-12. - just novelty value I guess.
Would it be possible to produce electricity from excess sound energy,
ie waves on a beach, wind in the trees, people talking in a bar, dogs barking, traffic, disco/rock concerts. we have a surplus or sound energy and a deficit of electric energy, it'd just be nice to redress the balance. They do it in telephones why not for other things?
And what about wind energy using wind created by moving vehicles, ie cars and trains. Could we place small wind turbines on top of these vehicle to generate electricity while they move, or along the side of road and train tracks to avoid increasing the air resistance in order to move the vehicles in the first place.
What about a desk fan with a wind turbine directly in front of it? Would you still feel the wind coming out the other side? Could it be a self powering fan, with only a simply charge needed to start it?
A friend of mine had the thought that maybe the pressure from home brewed Ginger Beer could power a small engine? this would be a form of bio-power.
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