Why do loose screws only get looser, not the other way round? (part 2)
Our readers provide yet more evidence that screws don鈥檛 always get looser
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This week鈥檚 new questions
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What is the point in having nerve endings in our teeth?
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Doing strenuous exercise, it helps to shout the number of reps. Why?
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Would a tug of war be possible over 42 km between France and England?
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How much of my body from 40 years ago is part of me today? (part 2)
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This week鈥檚 new questions
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What is the most efficient way to load passengers into an aircraft?
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Why are birds mostly monogamous, but not mammals?
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This week鈥檚 new questions
Which is the best way to put toilet roll on the holder: rolling towards you or away? And how would global weather patterns change if Earth were to rotate in the opposite direction?
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Is sweat from exercise different from that due to anxiety or illness?
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Why do speakers at public events wave their hands around so much?
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This week鈥檚 new questions
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How could I theoretically reach other dimensions in the multiverse?
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