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Zoom in on a Tooth
Posted 15 years ago by mucho in category: interesting   Comments (4)

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How Does a Transistor Work?
Posted 11 years ago by boyt in category: interesting   Comments (0)

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What's Hong Kong?
Posted 10 years ago by Matillano in category: interesting   Comments (2)

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Homemade Microwave Popcorn - From Scratch
Posted 9 years ago by boyt in category: interesting   Comments (0)

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Does Water Ever Expire?
Posted 9 years ago by TheBossFace in category: interesting   Comments (0)