Tom Gauld on the intricacies of working from home
Tom Gauld's weekly cartoon
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Twisteddoodles gets to grips with automated crisis prediction
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Earth
Stunning night sky pictures shortlisted for astronomy photo prize
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Keep your distance from cassowaries – and not just because of covid-19
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Is there a maximum tree width?
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Are longer bicycles more efficient?
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This week’s new questions
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Tom Gauld on dropping a bowling ball out of a balloon for science
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Twisteddoodles on graphs that speak for themselves
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Environment
Ghostly clouds are appearing more often due to climate change
Noctilucent clouds, silvery blue wisps that float high in our atmosphere, are a rare phenomenon – but rising greenhouse gas emissions mean we are seeing more and more of them
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We may have finally settled just how far penguins can poop
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Does magnetism decay over time?
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How do chameleons change colour?
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This week’s new questions
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