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Today on 快猫短视频
All the latest stories on newscientist.com: why we couldn't think without analogies, Cleveland captives' path to recovery, Mars, galactic bubbles, and more
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Space
Robot glory as Canada puts space arm on banknote
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Technology
Fanning the flames: House burns in wildfire simulation
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Enigma Number 1748
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Feedback: Light up your brain
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