This week鈥檚 new questions
Is there such a thing as reverse altitude sickness, and is a cold brew really the secret to a great cup of coffee? Tell us what you think
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Is there a maximum tree width?
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Are longer bicycles more efficient?
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This week’s new questions
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Does magnetism decay over time?
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How do chameleons change colour?
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This week鈥檚 new questions
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Would dinosaurs bob their heads like birds do?
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How can I win at Monopoly?
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This week鈥檚 new questions
When you wash a duvet cover, why does other washing end up inside it? Germs accumulate under our nails, but they rarely cause infections, so does a natural antibacterial protect the area?
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Why don鈥檛 worms harm plant roots when they stir up soil?
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Why do some hairs stop growing while others keep going?
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This week鈥檚 new questions
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Why didn’t babies evolve to allow parents to get more sleep?
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