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Showing posts from November, 2016
Why only 60 seconds in a minute?
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How should DNA be collected from a crime scene?
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What kind of food did the Ancient Romans eat?
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Why do Waterfalls appear white in colour?
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Why was synthetic rubber developed?
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Why is Antonine plague a turning point in the history of Rome?
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How did the Egyptians build the pyramids?
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What role does military play in invention of duct tape?
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How did safety razors become so popular?
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Why is microwave oven considered a military invention?
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How were pigeons used as carriers of messages?
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How do feathers get their colours?
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How did birds evolve from reptiles?
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Why did people start using metal as money?
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Did Thomas Edison really invent "light bulb?"
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Why were first banks of Ancient Greece unique?
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Were there Doctors in Stone age?
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