anamasnoname:

Bicycle Phone Changer
In Tanzania, the majority of people live without electricity, yet a third of the country uses mobile phones. Bernard Kiwia, a trained electrician and vocational-school instructor, collaborated with the for-profit social enterprise Global Cycle Solutions (GCS) to design a phone charger from scrap bike and radio parts. Made from spokes, brake tubes, clamps, motors, and capacitors, the device generates power when its roller comes in contact with the bike&rsquo;s spinning wheel as one rides it
