Meet Kelvin Doe, the self-taught engineering whiz who creates gadgets from other people's trash

Kelvin Doe is an engineer and inventor from Sierra Leone, and his story is remarkable. One of the most incredible things about inspiration and innovation is that they can spring from anywhere. Kelvin's drive to teach himself electronics by reverse-engineering radios, generators and other devices from what 99.9% of… »11/21/12 4:00pm11/21/12 4:00pm