Why is tea more likely than coffee to leave a stain in a mug?
Our readers point to a number of different reasons, including the quantity of molecules called tannins and the amount of time each drink is typically left to steep
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What happens to our electronic cloud records when we die? Part 2
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Plants wither away when neglected. Can they also feel pain?
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This week’s new questions
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Environment
Washed-up clothing mimics seaweed in stunning cyanotypes
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Mind
Can’t stop doomscrolling? Here’s some research to help you cut back
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Comment
A bestseller is born: How Zuckerberg discovered the Streisand Effect
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Tom Gauld on Young MacDonald’s plans for his farm
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Twisteddoodles: interesting fact discovered!
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Life
Camera trap spots endangered elephant mother and calf on the move
A weatherproof box and motion-trigger camera help photographer Will Burrard-Lucas capture images of rarely seen African elephants
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Health
What the research says about the benefits of low-intensity cardio
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Is it more efficient to carry water in a bottle or in my stomach?
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Did the running skills of our species help us outcompete Neanderthals?
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This week’s new questions
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