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Create a simple way of chopping up your wood.
Posted 3 years ago by MrDunkus in category: geeky   Comments (5)


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Posted 9 years ago by boyt in category: interesting   Comments (0)


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Posted 2 years ago by StiflersMom in category: music   Comments (0)



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Dan Dunn
Posted 9 years ago by boyt in category: impressive   Comments (0)


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A huge crystal of calcite is used to demonstrate birefringence, a side-effect of light's refraction through certain materials.
Posted 5 years ago by boyt in category: science   Comments (0)