Technology to generate electricity with "beating heart", and to operate iPod and mobile phone

Human body temperatureAndMethod using radio waves in the airVarious things are being researched as a method of charging portable equipments, such as the technology to operate iPod and cellular phone by power generation using "heartbeat of heart" has appeared.

In other words, it seems that it is quite ridiculous that "You can keep generating power as long as the heart moves."

Details are as below.
Apple iPod 'could be charged by the human heart' - Telegraph

According to this article, Dr. Zhong Lin Wang belonging to the University of Georgia in the USA announces a milestone for realizing technology to power by using the movement of the body without using a battery or outlet, American Chemistry It is said that he went to a regular scientific meeting.

Dr. Wang can generate five electricity by bundling millions of wires made of nano-sized zinc oxide corresponding to about one-fifty-fifth of the human hair capable of generating weak electricity when bent. We developed a nano generator system and succeeded in outputting the same 3 volt voltage as when using two AA batteries. The current should be 1 microampere.

Although it has not reached the stage of practical application to the end, it is said that by using this generator device, it is possible to generate electricity by any human action such as walking and heartbeat.

In addition, research to improve it is still continuing, and further adding wires and generator equipment will make it possible to generate enough energy to operate iPods, mobile phones, etc. Wang "He says.