Can we harness the power of lightning?

How much water do we lose in a day? What's the best way to drink a scotch? Can we harness the power of lightning? Can things move faster than the speed of light? Are things that burn totally destroyed? Could a cable run from earth to space to generate energy? Would exercise just before bed help weight loss? Can we have solar panels instead of windows? Plus, how does circumcising affect populations? Like this podcast? Please help us by supporting the Naked Scientists