The Light Bulb

Thomas Edison

Thomas Edison actually did not invent the light bulb. 'He innovated the 50 year old idea. In 1879, using lower current electricity, a small carbonized filament, and an improved vacuum inside the globe, he was able to produce a reliable, long-lasting source of light. This was not the first source of light ever made but in fact the most reliable at the time. This is how Thomas became so famous.
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Why was his light bulb useful?

His innovation was very useful! His innovation why we have three, 8 hour shifts of work. With out the light bulb people could not work at night efficiently.

Thomas Edison @ 1-800-lightbulb

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