Who doesn’t like the latest gadgets to help make the job go a little easier? The old adage that “necessity is the mother of invention” holds true here. Recently, NASA used a Zero G 3-D printer to make a fully functioning ratchet ---in space. The ratchet was designed on earth, while the printer instructions were transmitted to the International Space Station where the tool was printed out over a four hour period. Additionally, Lockheed Martin recently received a contract for the U.