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Streetlamp design light pollution comparison.
Previously:
World's infrastructure maps - photos
Light bulb efficiencies compared - GIF
Light bulbs under X-ray - photo
Machine for inserting mounts into lightbulbs - GIF
Levitating light bulb - GIF
Streetlamp design light pollution comparison.
Previously:
World's infrastructure maps - photos
Light bulb efficiencies compared - GIF
Light bulbs under X-ray - photo
Machine for inserting mounts into lightbulbs - GIF
Levitating light bulb - GIF
New plans added on 11/20: Click here for 2,589 plans for homemade tools.
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