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HOW WE GOT TO NOW

The invention of the light bulb

  • Aired: 09/11/2014
  • 04:59
  • Rating: NR
In this clip from the 'Light' episode, Steven explains the life span of the lightbulb, from its conception as a seed of an idea to its birth as a fully-fledged working invention.
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The invention of the light bulb
The invention of the light bulb
How was the first long-lasting light bulb invented?
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