3D printing prosthetics

With a 3D printer and about $15, Ithaca College, N.Y., senior physics major Ryan Bouricius was able to create a functional prosthetic hand that can be used to grip, write, and even catch a ball.

Meet Salto, the leaping robot

Roboticists at UC Berkeley designed a small robot that can leap into the air and spring off a wall, or perform multiple vertical jumps in a row.