What happens when a hammer hits a nail?
Our readers carefully consider whether hammer electrons hit nail electrons when this happens, and explain what drives the nail in
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This week鈥檚 new questions
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If we could step to the universe鈥檚 furthest point, what would we see?
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Why do large military planes have wings on the top of the fuselage?
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This week鈥檚 new questions
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Will we ever be able to tell if an AI gains consciousness?
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Does it take more energy to skip or run to the pizza restaurant?
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This week鈥檚 new questions
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Why do some flowers close up at night but others stay open?
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How do you check the accuracy of an atomic clock?
The best way to do this would be to compare it to an even more accurate clock, say our readers, but as this doesn't exist, you need two independent clocks
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This week鈥檚 new questions
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Did abstract mathematics exist before the big bang?
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This week鈥檚 new questions
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How did marine reptiles such as ichthyosaurs breathe?
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