SCIENCE EASY No. 177
.. Let's Play Series to why?
"Why light the lamps? ;
Consider the common lamp, those clear glass. We approach the look and ... Within it we see a glass support having one wire which in turn submits to a very finite, called filament winding.
How
Works
When we press the button (switch) to turn, our work allow electricity (millions and millions of moving electrons) pass through the incandescent filament and make it a effect on electricity is called: Joule, so it emits light illuminates its surroundings. This is an example of transformation of electric energy in light, but if you touch the glass it is possible that we burn, because part of the energy is transformed into heat. Before they invented this little marvel, the lighting was done with lamps gas. Who was its inventor? The invention is credited to Thomas Alva Edison was born in the United States in 1847, he has a child that was not valued by their teachers because they said it was unwise. The issue is that it was a great inventor and in 1879 created the light bulb in 1880 and patented it in 1882 installed the first electric light in New York. When we say that a bulb is burned we often speak properly since the incandescent filament therefore be some time after it melts and breaks, ie ending the life of the bulb. To increase manufacturing have become increasingly resistant filaments. The most widely accepted is quite resistant tungsten and lead electricity with ease and he can make very fine filaments. But the incandescent lamp despite efforts to yield more and more, too much energy as heat, therefore it is not very rendidora and little by little leaving the market and is replaced by other lamps that consume less power and generate similar light, as calls for low power consumption. CFL (compact fluorescent lamp). Are small tubes inside painted with a substance that the passage of electricity becomes fluorescent light emits less energy and lose less heat. These lamps have longer life and consume less producing energy as light. In these times of global energy crisis are extremely useful. continue to think like scientists in power
Man is just a dot on the vast Universal but has an important purpose of being 
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