This week’s questions
How long must a wind farm operate to pay back the energy used to build it, and how exactly does water hydrate us when most of it passes straight through?
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Clucking dinosaurs
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Foam over
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This week’s new questions
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Why are some foods delicious to some people and disgusting to others?
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Does having flowers in hospital wards harm patients’ health?
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This week’s new questions
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What causes the fresh smell before a storm?
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Clean limbs: should you wash your legs?
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This week’s new questions
What causes these patterns in the sky? Will new fossil fuels ever form? Why does we close our eyes when sneezing?
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Why don’t birds eyeballs freeze in the extreme cold?
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What is dust, and is it harmful to human health?
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This week’s new questions
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What’s the best swimming stroke in terms of calories burned?
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