Therefore a very innovative device had been created in the Micro-manufacturing Institute at Louisiana Tech University in USA which when fitted in the heels of the shoes, it can generate enough power to charge a cell phone or other such a tiny electric appliances.
As a considerable amount of power is generated while walking therefore some part of it can be stored by fitting a tiny piezoelectric material in the shoe that convert mechanical energy in to electrical energy through some kind of special circuits installed.
This material (Lead Zirconate Titanate) generates electricity when pressure is exerted on such crystals during walking; this type of piezoelectricity is now been used in many of applications such as ignition source of cigarette lighters and push start propane barbecues.
Well I think, their will now be no need to get worried about any disconnection from your family & world even if you are in the Sahara desert or in Africa forests, by just spending just a little more cost on your shoes.