Who Really Invented the Light Bulb? - Objectivity #75

YouTube description:

Brady and Keith investigate the true pioneers of the incandescent light bulb.

Films by James Hennessy and Brady Haran

Royal Society website: http://bit.ly/Royal_Society

The Royal Society's own YouTube channel: https://www.youtube.com/user/RoyalSociety

(H/T @eric3579 and digg)
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