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Scanning Electron Microscope
Posted 5 months ago by jess88 in category: interesting   Comments (0)


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Here's a technique you can use to start a fire for survival if you having nothing but a water bottle and a bright sunny day.
Posted 5 months ago by DanBe in category: interesting   Comments (0)


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Posted 4 months ago by Landan2010 in category: interesting   Comments (1)



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Posted 4 months ago by CookieP in category: news   Comments (0)


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Posted 3 months ago by Bobb in category: interesting   Comments (0)