Although you certainly can inflate a bike's tires using a compact hand pump, doing so typically involves some time and effort. That's why many cyclists use CO2 cartridges instead – particularly road ...

Every year millions of tourists and locals descend upon Tibet’s temples and spin the prayer wheels contained inside. If the mechanical energy generated by the movement of these spinning wheels could ...

May 18, 2009 Tibetan prayer wheels have been used for centuries to create harmony, enhance compassion and generate positive karmic energy. Now, a device that could potentially harness the kinetic ...