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Space/Science » in reply to Could this be a reasonable way to save energy and reduce light pollution

A good related article

TAFKASE — 1/2/2008 4:02:34 PM (archived)

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The whole thread (3 posts)

Could this be a reasonable way to save energy and reduce light pollution - TAFKASE - 1/2/2008 3:56:13 PM
- A good related article - TAFKASE - 1/2/2008 4:02:34 PM
  - The Cree company - TB - 1/2/2008 4:29:37 PM

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