15 years old when we doing? Busy preparing for exams or means test, but the Canadian 15-year-old little girl Ann (Ann Makosinski) is busy invention flashlight, last year she invented a piezoelectric material flashlights, flashlight that can generate electricity squeeze shiny, This invention allows safe by the Canadian science competitions bronze medal, but she does not intend to stop there.
This year, Ann introduced thermoelectric effect is the application of hollow flashlight, this time to let her out of Canada, all the way to advance the 2013 Google Science Competition (Google Science Fair) finals in September, she will work with the other 14 contestants went to California Mountain View (Mountain View) competition winner, the winner will participate in the National Geographic expedition to the Galapagos Islands, 10 days, $ 50,000 scholarships and other awards.
Let piezoelectric effect and thermoelectric effect is no stranger to the telecommunications giant Vodafone had previously reported on a summer music festival launch applications shorts charging the piezoelectric effect, and the application of thermoelectric effect charging sleeping bags, these power generation technologies allowing the body to become generators, while Ann too fancy body's ability to generate electricity.
Ann said that the human body is like a 100-watt bulb will be walking, the body constantly release heat, these energies have not been good use, in that case, you should take a direct heat to the body when the power is like, why use the battery it? An aluminum tubes used to create flashlight grip, palms holding, the outside is heated, while the interior is hollow to allow air flow to cool it, because the temperature difference inside and outside, as long as the temperature and body temperature 5 degrees Celsius temperature difference is enough to Thermoelectric materials generate electricity, generating 5.4 mW of power, so that the front end of the LED flashlight bulb 5 ft. candles brightness.
Previous no battery flashlight, often require Dynamo, or grip strength driven by a group of small flywheel to generate electricity, not only increase the weight flashlights, mechanical creaking sound is also very annoying, security of this flashlight, you do not have these drawbacks, If after commercialization, power outages do not find that the battery, because you yourself are the battery, just find flashlights like.
2013 Google Science Competition results will be announced on September 23, then we wish the little girl Ann smooth win it.
(Photo Credit: Video screenshot)
