Sparks of Geniuses

Imagine living in a home with no light. Well 125 years ago not many had lights in their homes, their way through one room to another wasn't brighten up. Technology was way out off their leagues, their only thing to lighten their way were candles. Humphrey Davy, an English scientist experimented with electricity and invented an electric battery (in the 1800s). When he connected wires to his battery and a piece of carbon, the carbon glowed, producing light. This is called an electric arc.This led him to create the first electric light bulb. Then, 60 years later, an English physicist, Joseph Wilson Swan, found that a carbon paper filament worked well, but burned up quickly. In 1878, he demonstrated his new electric lamps and determined to provide practical long-lasting electric light. Meanwhile, an American inventor was already working his way to creating "better-longer- lasting" light bulbs. Thomas Edison that was, discovered that these carbon filament in an oxygen-free bulb glowed but did not burn up for 40 hours. Edison eventually produced a bulb that could glow for over 1500 hours. These bulbs lasted to a great minimum of time, but as technology improved in our world, than greater, better and much, much longer-lasting light bulbs were invented. That is why today even our nights are bright. What a difference..!


Read more at:

http://invsee.asu.edu/Modules/lightbulb/meathist.htm
http://www.articlesbase.com/accessories-articles/the-history-of-the-light-bulb-31355.html