Singapore’s “Lianhe Zaobao†and Hong Kong’s “Wen Wei Po†reported that modern people rely on mobile phones and become frantic when mobile phones are out of power. For this reason, various scientists and research fellows have launched inventories such as recharging with sweat or charging with shouting. A kind of fast "exotic" charging method.
A Use sweat to stop the battery
The new device developed by the research team led by Joseph, a professor of nanoengineering at the University of California, San Diego, looks like a temporary tattoo paper film, but the above sensor has an enzyme that can sweat when the body is strenuously active. The lactic acid produced converts into a weak current. That is, as long as a small piece of temporary tattoo with a sensor is attached to the arm or other parts of the body, you can use your own sweat to charge the small appliances that you carry with you.
Of course, the new equipment is not yet the most suitable charging method. Because the experiment found that some people can not produce more lactic acid like athletes, can make the battery generate enough power. However, Joseph believes that future new devices may store enough power to drive mobile phones and other smart appliances.
Joseph also said that in addition to being printed on tattoos, sensors can also be placed on textiles and even underwear. The current tattoo version can be used for 10 to 12 hours and the manufacturing cost is only a few cents.
B cell phone shouted
The Queen Mary of the University of London, UK, recently joined Microsoft’s Nokia to develop a sound-friendly, environmentally-friendly charger that absorbs vibration and generates electricity. As long as it shouts at the charger, it can charge the phone.
An earlier study by the Queen Mary student found that the sound wave vibrations caused by the playing of rock music can make the solar cells become active, thus increasing the battery efficiency by 40%. Nokia and the college then conceived that they could use the zinc oxide that generates electricity when stressed, creating a charger that can collect sound and convert it into energy.
In addition to yelling, conversations with people around the home and the hum of music can also be effective. The Sonic Charger is the size of a Nokia Lumia 925 smartphone, easy to carry, and able to generate 5 volts of electricity, enough to fill a cell phone.
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