The Light Bulb

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Best invention before the Internet :) ( Edited by webdesign)

http://www.ideafinder.com/history/inventions/li...

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even this question is depressing .. with out it, what would it be of us? people don't realize this but, this is one of the biggest inventions fo the history of mankind, because thaks to this, the world of electricity is becoming a great bussiness nowadays
by memozz 4 years ago