This is old news, but I am still in awe with this kid and had to share it with you. Meet then 15 years-old Sierra Leone boy, Kelvin Doe, who wowed MIT! Enjoy! He is very creative: he created his own battery because of electricity shortage, he made his own radio because he wanted to broadcast to people in his neighborhood, he made his own generator because he needed it. He works by reverse engineering. Enjoy!