Quick crossword #77: Pigmented layer of the eye (4)
25 February 2021
Challenge your brain by solving New Scientist's weekly crosswords on your mobile, tablet or desktop
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Puzzle #102: Can you figure out a number with amazing properties?
24 February 2021
Can you solve this week’s tricky puzzle "Passport to success"? Plus the answer to puzzle #101
Even the AIs have started judging you on your bookcase backdrops
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Recruitment AIs judge you on your book collection, plus the man who the machines think is just 6.2 centimetres tool and the people who dressed up to try to get a vaccine, in Feedback’s weekly weird round-up
Is MSG bad for you or is mass aversion to it just a cultural oddity?
24 February 2021
Monosodium glutamate is eaten without problems in many countries, yet in the West there is a strange cultural aversion to it. James Wong investigates what’s going on
What could we do for the climate and health if money were no object?
24 February 2021
The technology exists to solve the world’s biggest problems, but lack of money and political will stymie progress. Analyses show that even huge investments pay for themselves, so the task is to get politicians to make change happen
Top tips for stopping slugs and snails wrecking your garden every year
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Slugs and snails can wreak on flowers and food alike in your garden. Here's how to join the resistance and fight back, writes Clare Wilson
The rise and fall of the mysterious culture that invented civilisation
24 February 2021
Proto-cities built from 6200 years ago in eastern Europe upend our ideas about when civilisation began and why people made the move from rural to urban living
How to spend a trillion dollars to fix climate change and end poverty
24 February 2021
Let’s imagine you have inherited a fortune and want to solve the world’s most pressing problems. Here’s the best way to spend your money to make a difference to climate change, disease and poverty
Children are getting long covid and being left with lasting problems
24 February 2021
UK officials have called the lack of support for children with long covid a “national scandal” and parents are raising alarms about the risks posed by school reopening
First universal coronavirus vaccine will start human trials this year
24 February 2021
The world is in urgent need of a vaccine that protects against all coronaviruses, even those we've not met yet, warn scientists, as plans for human trials of potential candidates ramp up
