io9.com/5931615/this -toddler-and-her-tin y-exoskeleton-will-m elt-your-heartM Emma. She's two years old and suffers from arthrogryposis multiplex congenita, a rare disorder that makes lifting her arms extremely difficult. But with the aid of Dr. Tariq Rahman, Whitney Sample, and her custom-fit, 3D-printed Wilmington Robotic Exoskeleton, Emma now has the strength to lift her arms and play like any toddler. 4951