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    Graphane battery.
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    Graphane battery.

     2  views
    Newer technology holographic storage.
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    Newer technology holographic storage.

     2  views
    Fact on earth.
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    Fact on earth.

     1  view
    Human body fact.
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    Human body fact.

     1  view
    Honeybees..
    0:10

    Honeybees..

     2  views