This week鈥檚 new questions
Do pot plants get lonely? And when older people grunt "ohoo" when they sit down on a chair or stand up again, is this a cultural convention or has it got a physiological reason?
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How did people in the Arctic get vitamin D with little or no sunlight?
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This week’s questions
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Are tandems really more efficient than regular bikes? (continued)
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Deep-sea hydrothermal vents team with life. How are they colonised?
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Why do waves always appear to roll towards a beach, not the other way?
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This week鈥檚 new questions
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How do we measure sea level if it is always rising?
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Why do duvet covers swallow other laundry? (continued)
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This week鈥檚 new questions
What is the point of lettuce when its leaves don鈥檛 attract pollinators and shield each other from the sun? And are there any species of bird that hiccup?
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Why do some people generate useful ideas while asleep?
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Is there such thing as reverse altitude sickness?
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This week鈥檚 new questions
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Are lids getting harder to open?
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