AIs rely on data centres that use vast amounts of energy Jason Alden/Bloomberg/Getty Being more judicious in which AI models we use for tasks could potentially save 31.9 terawatt-hours of energy this year alone – equivalent to the output of five nuclear reactors. Tiago da Silva Barros at the University of Cote d’Azur in France…
Imagine you’re walking your dog. It interacts with the world around you—sniffing some things, relieving itself on others. You walk down the Embarcadero in San Francisco on a bright sunny day, and you see the Ferry Building in the distance as you look out into the bay. Your dog turns to you, looks you in…
Biofuels are contributing to environmental harm Dave Reede/Alamy It’s obvious, isn’t it. Plants turn sunlight into food – stored energy – so if we turn that food into fuels, we should get sustainable biofuels with zero carbon emissions, right? Wrong, utterly wrong. The growth in biofuels is, in fact, increasing emissions, and also hurting both…
Some schools require students to leave their phones in lockers all day Robin Utrecht/Shutterstock Many people are concerned about the negative consequences of too much screen time, particularly if phone use at school distracts students and affects their learning. But a study suggests banning them from schools makes some students lonelier, at least initially. “If…
Can you undo a spinning top? Shutterstock Imagine spinning a top and then letting it come to rest. Is there a way for you to spin the top again so it ends up in the exact position it started, as if you had never spun it at all? Surprisingly, yes, say mathematicians who have discovered…
“A government might start using its digital ID in more invasive ways than originally promised…” da-kuk/Getty Images The first ID card I ever had was the flimsy piece of laminated paper that made up my driver’s license. In the US, a driver’s license includes a photo, biometric information (eye colour, height, etc.) and birthdate. This…
Josie Ford Feedback is New Scientist’s popular sideways look at the latest science and technology news. You can submit items you believe may amuse readers to Feedback by emailing feedback@newscientist.com Our expiry date Bad news, everyone: our cards are marked. The human species will go extinct by the year 2339, so we have just a…
Grass by Sheri S. Tepper I have a penchant for old sci-fi with trashy covers so terrible they are brilliant. My dream is that someone creates a wallpaper of them so I can use it to paper my downstairs bathroom. In the meantime, I recently came across a book in a charity shop I ended…
Simone Rotella People transgress. They get punished. They start cooperating. This basic intuition that people are rational, and so respond to punishment by changing their behaviour, lies at the heart of Western legal systems, economic theories of crime and evolutionary theories of cooperation. The only problem is that decades of research suggest that punishment doesn’t…
Did these cool creatures pull off the ultimate power play by domesticating themselves? Eman Kazemi/Alamy Cat Tales: A historyJerry D. Moore, Thames & Hudson Over the course of a weekend, I once saw one of my family’s cats, a Byronic individual named Solomon, maul my sister under the guise of play, throw up on my bedsheets…