Charge your smartphones just by waving and walking !

Scientists have developed an ultra-thin device that can power your smartphone, fitness tracker and other gadgets using human movements like walking or waving.

THE PHONE : Based on battery technology and made form layers of black phosphorus that are only a few atoms thick , the energy harvesting system generates small amounts of electricity when it is bent or pressed even at extremely low frequency characteristics of human motion.

The materials are aromatically thin and small enough to be impregnated into textiles without affecting the fabrics look or feel and can extract energy from movements that are slower than 10 Hertz -10 cycles per second over the whole low frequency Window of movements corresponding to human motion ,they said.