The strange world of 6-dimensional eyebrow feathering
Feedback is our weekly column of bizarre stories, implausible advertising claims, confusing instructions and more
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Running on empty: Is runners’ second wind real?
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Water effect: Why is it hard to put on gloves when your hands are wet?
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This week’s new questions
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Health
Why our understanding of concussion has been completely wrong
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Environment
Fungi’s fabulous future in mental health and sustainable materials
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Twisteddoodles on the best scientific greetings cards
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Humans
How tempering chocolate hacks its crystalline structure
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Going viral: How can you get flu after vaccination?
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This week’s new questions
Does anything eat foxes? And how does smell work? Send us your thoughts
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Stockbrokers take on cows in a battle of investment strategy
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Health
From alcohol to ketamine, what’s the truth about recreational drugs?
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Life
Hundreds of millions of locusts are forming swarms bigger than cities
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Tom Gauld on being a small mammal in the large reptiles department
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