What is the age/location/appearance of the world鈥檚 average person?
Beware of applying averages to people, say our readers who point to Earth鈥檚 core and 1940s mannequins in their responses
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How can stars be 30 billion light years away?
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This week鈥檚 new questions
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Tom Gauld on the arrival of the new and improved version 2.0
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Twisteddoodles on graphs gone bad
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Life
Dazzling photographs reveal the world on a microscopic scale
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Do drinks really taste different from cans or plastic/glass bottles?
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Are there limitless permutations of QR codes, or are they recycled?
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Why is pain so painful? (continued)
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This week鈥檚 new questions: Loose screws and brain overload
Why is it that loose screws always loosen further and never the other way round? And is it theoretically possible for our memory to become full to the point where it can no longer record information?
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Environment
Study your local pond to help track algal growth around the world
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Cats’ paw pads help paratroopers always land (safely) on their feet
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On smoking, tea drinking and “mental activities after dinner”
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Tom Gauld on overthinking
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