Andy Leer of maker space chain TechShop calibrates a 3-D printer at a GE-sponsored pop-up workshop in Washington, D.C. Maker spaces, which offer access to industrial-grade tools, are attracting support from governments and big companies like Ford and Lowe's. Gary Cameron/Reuters/Landov hide caption

itoggle caption Gary Cameron/Reuters/Landov

The Organ Care System keeps lungs warm, breathing and nourished while outside the body. MediCommConsultants hide caption

itoggle caption MediCommConsultants

Richard Turere speaks at the TED2013 conference in Long Beach, Calif. With a simple invention, the Kenyan teen figured out a way to keep cows and their predators safe. James Duncan Davidson hide caption

itoggle caption James Duncan Davidson

Students Blake Jamar (from left), Ryan Clifton and Gregory Gonzales take apart a bicycle that generates electricity at Analy High School in Sebastopol, Calif. Jon Kalish for NPR hide caption

itoggle caption Jon Kalish for NPR