Greta Thunberg’s gold mining doppelg盲nger found in 1898 photo
Feedback is our weekly column of bizarre stories, implausible advertising claims, confusing instructions and more
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Shrinking gravity: why doesn’t gravity diminish over time?
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Super seers: why some people can see ultraviolet light
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This week鈥檚 new question
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Life
Heroism and slapstick humour: Wolf behaviour can be amazingly human
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Environment
Bali’s stunning rice terraces offer clues to sustainable water use
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Space
Seize your chance to spot Mercury, the solar system’s smallest planet
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Need a digital detox? Then why not make a paper copy of your phone
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Can you make a screen adjust for those who are short-sighted?
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Strangers in dreams: are they real people or inventions?
Readers respond with their widely varying experiences of dreams and strangers, plus some analysis of why unfamiliar faces might appear
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This week鈥檚 new questions
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Humans
The Bhopal disaster 35 years on: Why the full truth remains unknown
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‘I like a challenge’: CERN physicist on the draw of weird antimatter
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Life
See the exquisite inner world of the gemstone crazy lace agate
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