Shrinking gravity: why doesn’t gravity diminish over time?
A reader wanted to know why rocks falling due to gravity don't make gravity decline. Other readers explain potential and kinetic energy and how it differs from gravity
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Super seers: why some people can see ultraviolet light
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This week鈥檚 new question
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Can you make a screen adjust for those who are short-sighted?
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Strangers in dreams: are they real people or inventions?
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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
Are long life and intelligence linked, and can you think yourself thinner? Your answers, reasons and experiences all welcome
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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?
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