Generator which is used as decoration
Preface: scientist has produced soft power rubber, when fold it, it can transform eighty percent of mechanical energy into electrical power. We can use this kind of material to make shoes, clothing accessories, and daily used stuff, even we can implant it into body as power.
“This looks like a pair of shoes, actually it is a charger”, if we remake the movie nation-produced 007, maybe we will have this sentence in the movie, the shoes which is transformed into a fan in the movie has been out of date.
Now scientist has manufactured a kind of tiny generator which we can put it in the coat, fix it under the shoe pad, maybe years later, it is not that funny when we pull a piece of wire out of shoes and use it for charging mobile phone, nowadays with the development of micro technology and material, people can charge for device at any time.
At the early of 2008, professor Wang from Georgia university of science and technology makes a kind of material which can produce power, at the best case, this material can produce 80 MW at every square, under the microscope, we can see every group of electric material’s structure likes two curve cones, when the material is folded and shook, two cones are compressed together and produce electricity.
The theory for this generator is piezoelectric effect, just like lighter. In 1880s, curie and his brother found some crystal can transform between mechanical energy and electric energy. Now in our daily life, there is large amount of piezoelectric material, from quartz to small component in watch, from aerospace to deep ocean.
Piezoelectric material has a big family, they have the common aspect which is that the centre of electric charge is not always at the same position inside lattice, although it appears that it is neutral, but the micro deformation of shape can change the distribution of electric charge, and in macro aspect, it turns out to be current.
According to the assumption of Macarl, those devices which can product electricity with micro deformation can produce electricity through the deformation of lung when somebody is breathing, and they can supply power for pacemakers.
Now the researchers hasn’t tested the biological safety of this generator on animals yet, if it can charge for mobile phone or iPod, it can be counted as valuable products. With more and more low energy-consumption in electric device, we are becoming more and more reliable to portable equipment, this kind of soft generator can bring us more and more freedom in using portable equipment.
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