Strangers in dreams: are they real people or inventions?
Readers respond with their widely varying experiences of dreams and strangers, plus some analysis of why unfamiliar faces might appear
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This week鈥檚 new questions
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Nettle effect: Why don’t dogs seem affected by stinging nettles?
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Hourglass figure: Why do wasps have such narrow waists?
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Getting used to it: How do we acclimatise to different temperatures?
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This week鈥檚 new questions
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Cold feat: Why is a freezer door hard to open just after you shut it?
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Sitting pretty: sitting is harmful, but how exactly is it bad?
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This week鈥檚 new questions
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Why do some people like science and others don鈥檛?
Why do some people seem to turn naturally to studying science but others aren鈥檛 interested at all? The first answers are in
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Coil conversion: on the energy of a compressed spring in acid
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This week鈥檚 new questions
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Could Jupiter ever ignite into a star?
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Why does my brain like fictional stories?
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