well guys, we in indian institute of technology madras have a design contest every year. theres a socially relevant section as well. if u guys have have come acroos something that needs a bit of engineering, tell me

Build a gun that produces a soothing effect in bystanders. It must look incredibly non-evil, but still be effective in it's original purpose, against those immune to the design.

Design a system that allows the people to properly participate in a democratic government.

That means: everybody can vote on every proposal.

true democracy.

We need some technical innovation for this I would think.