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How safe is your luggage really?
Break into and reseal a locked suitcase demonstration
Posted 13 years ago by
Timbus
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interesting
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Good Explanation Of How Differential Steering Works
Posted 13 years ago by
boyt
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165
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The impulse to help
Max Planck Institute for Evolutionary Anthropology
Posted 12 years ago by
boyt
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161
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10 Misconceptions Rundown
Posted 12 years ago by
boyt
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159
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Supersonic Flight - Sonic Booms
How it works
Posted 13 years ago by
Trent41
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interesting
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