This week鈥檚 new questions
When it rains, what is the material that is left on your windows to make them dirty? And how long does coronavirus survive outside the body?
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Nuts for apples: Squirrels behaving oddly
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Awful eaters: Does anything eat foxes?
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Come clean: What鈥檚 the difference between shampoo and shower gel?
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This week鈥檚 new questions
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Atomic space: What is in the space between a proton and an electron?
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Hot and cold: Why do you feel cold at the same temperature in winter?
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This week鈥檚 new questions
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Room for improvement: Compliment first or bad news first?
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This week鈥檚 new questions
Why is it easy to walk along a narrow plank when there鈥檚 no drop, but not if there's a 100-metre drop, and do people with larger ears have better hearing? Send us your thoughts
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Mulberry stains: why do milk and juice make them disappear?
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Fumbling fingers: Why do fingers get clumsy in the cold?
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This week鈥檚 new questions
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Running on empty: Is runners’ second wind real?
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