Tom Gauld on an incomplete theory of everything
16 September 2021
Tom Gauld's weekly cartoon
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Challenge your brain by solving New Scientist's weekly crosswords on your mobile, tablet or desktop
The pick of the strange science that won Ig Nobel prizes this year
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Chewing gum forensics, sex as a decongestant and attempts to find the smell of fear all scooped accolades at the 2021 Ig Nobel award ceremony, with Feedback watching on
This week’s new questions
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How do astronomers decide where a galaxy begins and ends? And why do onions and radishes continue to grow in the darkness of my refrigerator?
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As more readers ponder this question, It turns out that the numbers 51 and 247 aren’t so boring after all
My hair has a kink. How do the hairs know exactly where to bend?
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Readers debate whether hair curls are down to genetics, the shape of folicles or the way we sleep or brush
Why do dogs enjoy rolling in smelly fox or bird faeces?
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Readers suggest that it is a form of olfactory disguise - much to the chagrin of dog owners
The microbial gunk that hardens on teeth is revealing our deep past
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Plaque fossilises while we are still alive. Now, dental calculus is giving up the secrets of our ancient ancestors, from what they ate to how they interacted and evolved
Is the delta coronavirus variant more dangerous for children?
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Reports from some US hospitals have suggested that the delta coronavirus variant is more likely to have severe symptoms in children and hospitalise them, but the evidence for this is limited
SpaceX is about to send the first ever all-amateur mission into orbit
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SpaceX's Inspiration4 launch will mark the first time a flight into orbit has been crewed exclusively by people who are not professional astronauts
