What is the difference between a cake and a biscuit? (Part 2)
Do cakes, biscuits and sponges owe their differences to air or moisture? Of is it down to heat-induced lattices of protein and starch. Our readers discuss
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Why do some veg continue to grow in the darkness of a refrigerator?
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This week鈥檚 new questions
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Could we run out of musical note combinations to create new melodies?
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What is this strange object found on a Scottish beach?
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Where do galaxies begin and end?
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This week鈥檚 new questions
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Is it normal behaviour for rooks to bury bread rather than eat it?
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Do magnets have any effects on human cells?
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Have we found the answer to the mystery of the impossible rainbow?
The long-running puzzle of a rainbow that is too low might have been solved by our readers
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This week鈥檚 new questions
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Do frogs notice when it is raining?
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What is the most eco-friendly way to deal with our bodies after death?
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This week鈥檚 new questions
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