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Trump's Budget Explained
Posted 7 years ago by Brick in category: interesting   Comments (3)

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Does Water Swirl the Other Way in the Southern Hemisphere?
Re-upload. Both videos at once.
Posted 7 years ago by boyt in category: interesting   Comments (0)

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Talking Backwards
Smarter Every Day
Posted 7 years ago by boyt in category: interesting   Comments (0)

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A way to Evacuate from High Rise Buildings
Posted 6 years ago by boyt in category: interesting   Comments (1)

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Who Built the Panama Canal?
Posted 6 years ago by TheRiddler in category: interesting   Comments (0)