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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Premium
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
Tom Gauld on when next door's robot is vastly superior
24 February 2021
Tom Gauld's weekly cartoon
Even the AIs have started judging you on your bookcase backdrops
24 February 2021
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
Top tips for stopping slugs and snails wrecking your garden every year
24 February 2021
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
Amazing gecko photos captured using X-rays from a particle accelerator
24 February 2021
Incredibly detailed images of the intricate insides of a gecko were created using high-energy X-rays emitted by a synchrotron particle accelerator
This week’s new questions
24 February 2021
Why is the noise from road traffic louder when it is raining than on a dry day? And why do we cut or tie the umbilical cords of human infants, when animals manage without this intervention?
Do we perceive colours around us differently to others? (continued)
24 February 2021
The debate about the shoe that is either grey/green or pink/white continues, with some strange observations from readers.
Does long and short-sightedness affect other animals? If so, how do they cope?
24 February 2021
Many people need glasses to see details of close or far objects, but how do other animals cope with this impediment?
How does our brain stop us falling out of bed while asleep?
24 February 2021
When we are asleep, our mind seems to monitor our position in bed and stop us falling over the edge. But not always, according to New Scientist readers.
