It is estimated that some 17.5 million people out of Kenya's 38.5 million population own a cell phone.
But how do you charge it? In rural areas, there is no electricity. People have to travel great distances to stores where they charge the equivalent of about $2 to charge up a phone.
Now two Kenyan students have created the Smart Charger -- powered by any bicycle! After about an hour of cycling, the phone is charged.
What a revolutionary solution: simple, smart and totally carbon free!