Bicycle-mounted mobile phone chargers actually improve Kenyan lives

Two dollars is a princely sum in Kenya. But that's what people there have to pay to charge their mobile phone at a charging station—sometimes just an old car battery on the side of the road. So, in yet another example of technology actually improving people's lives (rather than just giving hipsters an opportunity to bump into other hipsters), two students have developed a bicycle-mounted charger. The idea, obviously, is that, as you peddle the bicycle around, your mobile phone's battery charges.