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Summary
| Description | Principle of a space lens . The basic function of a space lens to mitigate global warming. In reality, a 1000 kilometre diameter lens is enough, and, as a w:Frensel lens only a few millimeters thick, much smaller than simplified in image. |
| Date | |
| Source | Including the following image Image:The Earth seen from Apollo 17.jpg , also public domain licensed |
| Author | Mikael Häggström ( User:Mikael Häggström ) |
Licensing
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I, the copyright holder of this work, release this work into the
public domain
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