Environment
From the archives: Floating charge curtains to heal the ozone layer
25 years ago the ban on ozone-killing CFCs had only just come into force 鈥� and we reported on an unusual plan to speed the polar ozone hole鈥檚 recovery
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Life
Beavers, nature鈥檚 master engineers, may run wild in Wales again
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Space
Tana Joseph: The Hubble Space Telescope hooked me on science
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Conservative Party leader contenders: Ex-health minister Jeremy Hunt
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Technology
How to make a desktop traffic light with a breadboard
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Feedback: Life, liberty and the pursuit of manly beverages
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Core subject: how does Earth’s magnetic field arise?
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Why does the jet stream affect our weather?
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This week’s new questions
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Mind
Neuroscientist Sophie Scott on why we laugh and a love of thermostats
Sophie Scott works with comedians and impressionists to uncover what happens to our brains when we laugh. And she has a very unusual hobby
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Humans
Angela Saini video interview: The return of race in mainstream science
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Humans
2019 European elections: How to vote if you care about climate change
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Technology
How to be a maker: The complete list of all you need
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Health
How Willem Einthoven gave doctors a window on the heart
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