This week鈥檚 new questions
Are owls smarter than other birds, and how do we know that hominid fossils aren鈥檛 time travellers that came to a sticky end?
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Could you change Earth鈥檚 rotation by all running at the same time?
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Swimming strokes: which is the fastest?
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This week鈥檚 new questions
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In the ink: why are blue highlighter markers less bright than others?
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Good consumers: is online shopping greener than going into town?
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This week鈥檚 new questions
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End of an era: how long did it take the dinosaurs to die out?
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Fresh fruit: does washing produce reduce the risk of food poisoning?
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This week鈥檚 new questions
Do you ever see strangers in your dreams? And what is the carbon cost of new cars versus older cars
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Freewheeling: does one finger provide significant support on a bike?
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Time and tide: what is the smallest body of water with lunar tides?
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This week鈥檚 new questions
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Clean limbs
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