Innovation Nation

Teen inventors who are out to stop distracted driving; inventor Thomas Edison; drones; tiny windmills.

A `medical MacGyver' uses toys to create health devices; smart shopping carts; lighting soda bottles.

The creator of Autotune; Rosa Parks; software that shows how kids will age; removing plastic from the oceans.

A girl growing oil-producing algae under her bed; the Wright brothers; pet tech innovations; a 3D-printing pen.

A battery-free flashlight invented by a teenager; using CAT scans on million-dollar violins; a cloth generates electricity.

Software that can age faces in photographs accurately; staying in touch while the power is out; actress Hedy Lamarr.