Quick crossword #93: Dye mixture used in testing pH (6)
7 October 2021
Challenge your brain by solving New Scientist's weekly crosswords on your mobile, tablet or desktop
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Premium
Why some people find it so hard to find food in the fridge
6 October 2021
The frequency of felines in our dreams, plus problems with fridge foraging and more nominative determinism in Feedback's weird weekly round-up
This week’s new questions
6 October 2021
Assuming free will exists, how complex does an organism have to be to exhibit it? And when bullets are fired up into the air, what speed do they return, and could they cause injuries?
Why are bird droppings white, considering all they eat? (part 2)
6 October 2021
According to one reader, the whiteness of bird droppings might not be due to uric acid after all
How can we know that time exists?
6 October 2021
Time doesn’t really exist, say our readers, but we can still observe its action
Are there any evolutionary advantages of perimenopausal hot flushes?
6 October 2021
Hot flushes could just be a side effect of the perimenopausal changes in hormones, but could there be any benefits to them?
Puzzle #134: Can you work out which keyboard to hack?
6 October 2021
Can you solve this week’s fiendish puzzle No time to try? Plus, the answer to puzzle #133
How to water your garden in a more environmentally friendly way
6 October 2021
There are ways of keeping your garden growing that don't involve wasting huge quantities of water. Clare Wilson explains how
Sublime slime mould wins New Scientist photography competition
6 October 2021
Barry Webb's amazing image of a woodlouse munching on a gelatinous slime mould has taken the top prize at the New Scientist Photography Awards 2021
