Twisteddoodles gets a photo op with scientists
This week's cartoon from Twisteddoodles
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How fast should I cycle to avoid punctures?
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If sitting cross-legged is bad for us, why is it so comfortable?
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Is there any harm in drinking too much tea? Part 2
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This week鈥檚 new questions
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Environment
How we can all help grow trees in towns and cities
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How big is the moon when seen through your legs?
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Tom Gauld: ‘Do you have something you want to tell me, Brian?’
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Twisteddoodles on the life cycle of a frog
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Why do we experience music that is out of tune as unpleasant?
It could be down to mathematics, our dislike of disorder or our cultural expectations according to our readers - but our dislike of discordant music could be because it resembles the sounds of pain
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Is toothpaste essential? Aside from fluoride, what is its value?
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Would taller people benefit from bicycles with larger wheels? (part 2)
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This week鈥檚 new questions
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Space
How to spot the Milky Way in the night sky
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