hi every one
can some one suggest me the best project for my sc-exhibition
it should be useful to mankind and good for the nature
if it is complicate then it good

 

gas-powered spank counter.

 

Perpetual Motion device.

Nuclear Bomb Eliminator thingy

 

Beam me up, Scotty - module, and implement that in your solar-panel-based airplane...

That would help mankind in travel issues....

 

Space Ark. But not the Starlost.

 

I am a exhibitionist my self. So I have a lot of good ideas for you on what to do