Why do some people struggle to tell right from left?
How did the concepts of left and right emerge in the first place, and are port and starboard better alternatives? Readers give insight from a Scottish fishing town and flying lessons
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This week鈥檚 new questions
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Why is it easier to copy a picture of an object than the real object?
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What鈥檚 the minimum population needed to sustain a comfortable life?
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How do animals recognise their young and do they know they reproduce?
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This week鈥檚 new questions
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Why hasn鈥檛 time been decimalised?
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This week鈥檚 new questions
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I lost 15 kilograms, so why can鈥檛 I comfortably carry the same weight?
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What could happen to change gravity on Earth as we know it?
Readers give several ways in which gravity on Earth could significantly change, but none of them would be good news for the planet
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Why do some things, like fresh coffee, smell better than they taste?
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How does porridge manage to stick to non-stick pans?
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This week鈥檚 new questions
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Why is traffic noise on roads louder when it is raining?
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