Improv Electronics’s memo board saves sketches, lists and notes for later. Apply pressure to the 9.5-inch screen, and liquid crystals under the surface turn from clear to green. Flash storage holds 200 files, which a processor converts to PDF files for transfer to a computer.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.