Editor's note: David Sengeh is a doctoral student working at MIT’s Media Lab.
By David Sengeh, Special to CNN
(CNN) - When Kelvin Doe, a then-13-year-old from Sierra Leone, saw that off-the-shelf batteries were too expensive for the inventions he was working on, he made his own at home. Kelvin did not have the privilege to do his project in a school environment. Rather, he was compelled to act by necessity and for the joy of solving practical problems. Kelvin combined acid, soda, and metal, dumped those ingredients in a tin cup, waited for the mixture to dry and wrapped tape around the cup to make his first battery. He failed several times before completing a final, working prototype. He hasn’t purchased a battery since.
Next up: A generator. Kelvin made one of those by hacking an old rusty voltage stabilizer he found in a dustbin. The generator’s motor, plug, and other components are either homemade or picked from the garbage. In addition to providing electricity to his home, where neighbors come to charge their mobile phone batteries, the generator powers Kelvin’s homemade FM radio station, fully equipped with a custom music mixer, recycled CD player and antenna that allow his whole neighborhood to tune in. Now 16, Kelvin has expanded operations: he employs his friends as reporters and station managers, tasking them to interview spectators at local soccer games and keep the calendar of requests for his DJ services at parties and events. The average age of his crew is 12.
I am a doctoral student at the Massachusetts Institute of Technology (MIT) Media Lab working on developing the next generation of prosthetic sockets and wearable mechanical interfaces. I am motivated to do this work by the needs I have seen in my country, Sierra Leone, and elsewhere. At the MIT Media Lab, I have access to immense resources and expertise. But it has become apparent to me that when I take the prostheses back to Sierra Leone, the machines and technologies needed to maintain them will be left at my lab. And, as important, the recipients of the technology will not have participated in finding solutions to their problems nor shared in the joy of creation. FULL POST
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