Why are Blueprints Blue?
Before the days of copiers and electronic documents, duplicating documents was a time-consuming, arduous task. Learn how John Herschel's blueprints changed the face of the modern world -- and why they're blue.
Learn the stories of unsung inventor heroes and their trials, tribulations and successes.
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Видео Why are Blueprints Blue? канала Stuff of Genius - HowStuffWorks
Learn the stories of unsung inventor heroes and their trials, tribulations and successes.
Watch More Stuff of Genius on TestTube http://testtube.com/stuffofgenius
Please Subscribe to Stuff of Genius http://www.youtube.com/subscription_center?add_user=hiddengeniusshow
Watch More http://www.youtube.com/stuffofgenius
Twitter http://twitter.com/stuffofgenius
Facebook http://facebook.com/stuffofgenius
Google+ http://gplus.to/stuffofgenius
Видео Why are Blueprints Blue? канала Stuff of Genius - HowStuffWorks
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13 июля 2013 г. 23:00:15
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