Laptop, charging by pressing keys

Australian scientists have discovered a way to convert the energy a person spends when pressing keys into energy that can fuel a laptop battery. The applied effect of piezoelectricity allows you to generate a small charge of electricity when you press a special piezofilm.


But there are a number of obstacles to practical implementation. The main one is the large thickness of the piezofilm, for its reduction it is necessary to apply nanotechnology. In the future, this coating can be applied to any gadgets and computer parts.

Ecopad designers have proposed the idea of ​​a tablet computer capable of generating energy from a touch of the screen. The Ecopad tablet uses a similar effect of piezoelectricity.
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PS - Again I wanted to make a topic link, but I think I still have to suffer and work so that I can use this type of topic.