History of the light bulb. Creative photo sets.

With all those cliches of creativity, ideas, etc around, a light bulb still does one thing the best - gives light. Though quite often we take the light in the room or above our sketchbook or notebook for granted, having forgotten that it has to go a really long way to get where it is now... And Catherine Wagner made great photosets to remind us of that... So, here it is a history of a light bulb...

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