
Last Word
What’s the most efficient way to load passengers into planes? (part 2)
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New ÒÁÈ˾þÃ'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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Issue no. 3436 published 29 April 2023