Why don鈥檛 high-flying birds freeze in the frigid temperatures?
Birds can fly at tens of thousands of metres high. Ice forms on the wings of planes at this altitude, so why don鈥檛 the birds freeze?
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Do we perceive colours around us differently to others?
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This week鈥檚 new questions
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Has the doubling of the human population increased Earth鈥檚 mass?
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What makes some people short-sighted and others long-sighted? (cont.)
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What difference does the timing of meals over the day make?
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This week鈥檚 new questions
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What happens to the information in my brain when I die?
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Why does halloumi, but not other cheese, 鈥渟queak鈥� against your teeth?
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This week鈥檚 new questions
If plastic is inert, why does it have a taste and smell? What is the evolutionary origin of our love of gambling? And, when walking, if I take five paces to cover a distance and my companion takes six, who is getting more exercise?
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Why do some people struggle to tell right from left?
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Is it better to sniff or blow your nose?
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Why does light reflect in a mirror but go straight through glass? (continued)
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This week鈥檚 new questions
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