The invention of the light bulb changed the human existence, and it was one of the greatest discoveries human race has ever known. It was invented in the 1879 by Thomas Edison. Thomas Edison was not the first one to try to invent the incandescence lamp. Many others before him, tried to do the same thing, but they couldn’t get the filament hot enough, as to start burning: “The electric light has caused me the greatest amount of study and has required the most elaborate experiments. I was never myself discouraged, or inclined to be hopeless of success. I cannot say the same for all my associates." - Thomas Alva Edison
An electric light bulb is “an electric lamp in which a filament is heated to incandescence by an electric current. Today's incandescent light bulbs use filaments made of tungsten rather than carbon of the 1880's.” (For more info, see: http://www.ideafinder.com/history/inventions/lightbulb.htm)
The light bulb, known in the past as the electric lamp, has a filament that needs to be heated, so that it can start glowing and generate light. The bulb is the glass that encloses the filament.
The invention of the light bulb was one of the greatest discoveries in the human existence, and set the tone for many other discoveries to come. The incandescent light bulb was a utopian element because it certainly improved the existence of the people at the time of its discovery, as well as for generations to come.
Works cited:
http://www.ideafinder.com/history/inventions/lightbulb.htm
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