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Erickson and Co.: {Tutorial} Making Cloth Menstrual Pads - good step by step pictures NOTE: Leaving PUL on the bottom does NOT work 4 me (leaks thru top stitching)

DIY microscope holds promise in battles against disease Foldscope design, components and usage. (A) CAD layout of Foldscope paper components on an A4 sheet. (B) Schematic of an assembled Foldscope illustrating panning, and (C) cross-sectional view illustrating flexure-based focusing. (D) Foldscope components and tools used in the assembly, Read more at: