The Invention of the Light Bulb

898 Words4 Pages
The light bulb is the most important invention in history. This invention helps in so many ways, most importantly; it helps us see when we are not able to, mostly at night. The light bulb is an invention that is used all the time. The light bulb has impacted the world in various ways. The only light source that was available consisted of candles, oil lanterns, and gas lamps. It was a very long process to create the light bulb known today. What the inventors mostly did was they kept on adding different filaments, or trying out new filaments. It didn’t happen all at once, it took various people to keep on making it better, to what the typical light bulb is today. Many people helped with the light bulb that we know today. The following people, Humphry Davy, Warren De La Rue, James Bowman Lindsay, Edward Shepard, Joseph Wilson Swan, Heinrich Goebel, Hermann Sprengel, Henry Woodward, Matthew Evans, Thomas Edison, Willis Whitney, and William David Coolidge were all amazing people in which helped to make the light bulb we have today. A science experiment will also be discussed in this essay. In the science experiment, it will show which light bulb produces the most heat. The materials that will be used in this experiment will be two light bulbs, a lamp, and a thermometer used to measure the heat produced. The two light bulbs getting compared are an incandescent and a fluorescent light bulb. The invention of the incandescent light bulb has a history spanning as early as the 1800s. The only light source that was available before the light bulb consisted of candles, oil lanterns, and gas lamps (invsee.asu.edu). In 1809, Humphry Davy, an English Chemist began to work on the invention of the incandescent light source.... ... middle of paper ... ...ilament. It was a predecessor to the tungsten filament. In 1906 The General Electric Company was the first to patent a method. It was to make tungsten filaments that were used in incandescent light bulbs. The filaments were very expensive at that time when In 1910 William David Coolidge then invented an improved method of making tungsten filaments. This outlasted all the other types of filaments. This filament, unlike the one The General Electric Company made, was much more cheaper and affordable for the people. Coolidge made the price practical. Then later on in 1925 the first frosted light bulbs were produced. Finally, in 1991, Philips, using magnetic induction, invented a light bulb that lasted 60,000 hours (inventors.about.com). Although there were many light bulbs being made, some of them were no longer going to be made or sold from the store shelves.
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