packing tape, Teflon tape, Velcro tape, and painter's tape. But while drywall tape might be of limited utility if you wander too far from sheetrock, painter's tape seems to get more useful the ...

Turns out, all you need to generate a little electricity is some paper, Teflon tape and a pencil. A team from EPFL, working with researchers at the University of Tokyo, presented just such a ...