Foam over
When I drain a can of chickpeas, the liquid forms a soapy foam. What causes this, and if it is related to soap, could it be used as an eco-friendly replacement?
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This week鈥檚 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鈥� health?
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This week鈥檚 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鈥檚 new questions
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Why don鈥檛 birds eyeballs freeze in the extreme cold?
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What is dust, and is it harmful to human health?
A variety of responses from readers suggest that whether it is harmful depends on the type of dust
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This week鈥檚 new questions
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What鈥檚 the best swimming stroke in terms of calories burned?
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Why are animals stripy and why can’t humans have patterned hair?
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This week’s new questions
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