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Last word

New Scientist's popular Last Word series gives readers the opportunity to answer each other's questions about everyday science phenomena, from the shape of scones to the evolutionary history of toenails. To answer a question or ask a new one, email lastword@newscientist.com

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How fast am I moving and in which direction? Part 2

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This week’s new questions

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If human brains could be made larger, how much smarter could we be?

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Issue no. 3516 published 9 November 2024

New Scientist issue 3516 cover