Get Ready for Drug-Delivering Tattoos and Bones That Can Harvest Energy

Get Ready for Drug-Delivering Tattoos and Bones That Can Harvest Energy: "Everywhere you go, you can find scientists and engineers doing 3-D printing. They may be using it to print bridges over water, or buildings and houses, or even hearts and livers and skull parts. In fact, we’re hearing so much about 3-D printers creating the normal and ordinary stuff all over again, that it’s becoming pretty boring."