Cryptic crossword #98: Sulphur dioxide and bit of tin residue (4)
8 December 2022
Challenge your brain by solving New Scientist’s weekly crosswords on your mobile, tablet or desktop
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Premium
The Volcano review: Heartbreaking documentary relives Whakaari tragedy
7 December 2022
An intense and moving documentary tells the story of tourists caught on the volcanic island of Whakaari when it erupted in 2019
Homo Sapiens Rediscovered review: Hunting human origin stories
7 December 2022
From a bone fragment of a mysterious new species to the latest on cave art, Paul Pettit's powerful new book shows how science is rewriting the past
Leaving Twitter? Here's what other social media platforms offer
7 December 2022
With the platform looking a little the worse for wear after its recent acquisition by Elon Musk, Annalee Newitz tries the best alternatives, so you don’t have to
Marine sciences must cast off an imperial legacy of ocean exploitation
7 December 2022
A century and a half after HMS Challenger embarked on the first global survey of the ocean, some ideas from the era still linger. They urgently need to be left behind, says Helen Scales
The science of self-knowledge is important, even if it is a bit fuzzy
7 December 2022
Who you really are is a major question worth pursuing for most people, so research into self-knowledge is important despite the fact it often relies on subjective findings
This week’s new questions
7 December 2022
Could a rope be made long, light and strong enough for a tug-of-war over the 42 kilometres between Dover, UK, and Calais, France? And why do speakers at public events wave their hands around so much?
How fast would you have to travel to be able to run on water? (part 2)
7 December 2022
One reader suggests another way you can run on water – but you need a boat
Why do loose screws only get looser and not the other way round?
7 December 2022
Our readers debate whether screws can tighten themselves as well as get looser
Does a latte cool faster than a cappuccino?
7 December 2022
One New Scientist reader has done the maths and settled this debate about coffee – and another has volunteered to join the testing team
