The Light Bulb

An invention bringing light to many

A bright discovery

Thomas Edison invented the light bulb in 1879. He had failed thousands of times before his successful light bulb, and even that is much different than what we have today. His original design involved a coiled carbon filament, today we use a tungsten filament.

How it works

The light bulb works by putting electricity through a coil, it heats up to the points of being light. The electricity vibrates the atoms causing the atoms to rub against each other, creating heat. The bulb is also filled with an inert gas, such as argon.

How far has it come?

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Harris, Tom. "How Light Bulbs Work" 19 February 2002. <> 16 January 2015.

Harris, Tom. Light bulb structure. Digital image. How Stuff Works. N.p., 19 Feb. 2002. Web. 16 Jan. 2015.

Thomas edison holding a light bulb. Digital image. Uncommon Goods. N.p., n.d. Web. 16 Jan. 2015.

Wikipedia contributors. "Thomas Edison." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 9 Jan. 2015. Web. 16 Jan. 2015.