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2007-03-11 06:24:46 · 5 answers · asked by Anonymous in Science & Mathematics Physics

5 answers

The first incandescent electric light was made in 1800 by Humphry Davy, an English scientist. He experimented with electricity and invented an electric battery. When he connected wires to his battery and a piece of carbon, the carbon glowed, producing light. This is called an electric arc.

Much later, in 1860, the English physicist Sir Joseph Wilson Swan (1828-1914) was determined to devise a practical, long-lasting electric light. He found that a carbon paper filament worked well, but burned up quickly. In 1878, he demonstrated his new electric lamps in Newcastle, England.

The inventor Thomas Alva Edison (in the USA) experimented with thousands of different filaments to find just the right materials to glow well and be long-lasting. In 1879, Edison discovered that a 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.

Lewis Howard Latimer (1848-1928) improved the light bulb by inventing a carbon filament (patented in 1881); Latimer was a member of Edison's research team, which was called "Edison's Pioneers." In 1882, Latimer developed and patented a method of manufacturing his carbon filaments.

In 1903, Willis R. Whitney invented a treatment for the filament so that it wouldn't darken the inside of the bulb as it glowed. In 1910, William David Coolidge (1873-1975) invented a tungsten filament which lasted even longer than the older filaments. The incandescent bulb revolutionized the world.

2007-03-11 06:29:32 · answer #1 · answered by catarthur 6 · 0 0

Everybody says Thomas Edison. But he developed the first 'commercially feasible' light bulb.

The very *first* electric lamp was invented by some scientist in Germany about 1880 or 1885, IIRC. But it was little more than a lab curiosity because of it's price.

I don't remember the German guys name (this gettin' old *really* sucks ☺) but you can probably find it on the web.

Doug

2007-03-11 06:34:01 · answer #2 · answered by doug_donaghue 7 · 0 0

Osram would be going bust next. British gas are giving them away, they take 9 years to die, and then replace into poisonous waste. I purely have 2 gentle bulb sockets interior the abode that take those usual bulbs, the rest are equipped lights. So i offered 2 approximately 3 years in the past then British gas deliver me 4, so I won't want any further for greater or less 15 Years. what's the factor?

2016-12-18 10:51:01 · answer #3 · answered by ? 4 · 0 0

Though my first inclination is Thomas Edison, this site says a couple of others were before him and that Humphry Davy, an Englishman, was first. Edison improved the filament.

http://www.enchantedlearning.com/inventors/page/i/incandescentbulb.shtml

2007-03-11 06:29:19 · answer #4 · answered by ecolink 7 · 0 0

Tomas Edison invented the incandecent lamp

2007-03-11 06:28:36 · answer #5 · answered by smartdude474 2 · 0 2

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