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The Economist
The Economist
7 Aug 2024


NextImg:New batteries are stretchable enough to wear against the skin

New batteries are stretchable enough to wear against the skin

They take their inspiration from electric eels

Batteries are getting smaller, lighter and more powerful all the time. This is good news for manufacturers and buyers of products ranging from electric cars to mobile phones and fitness trackers. But for some applications the conventional shape and structure of a battery, with a rigid form and metallic components, is simply too clunky to be of use. Some personal electronics, for example, such as skin patches that monitor health conditions or brain-computer implants that decode neural signals to control electronic prosthetic devices, require more intimate contact.

Lavender extract makes excellent mosquito-repellent

Scientists have turned it into clothing


How to reduce the risk of developing dementia

A healthy lifestyle can prevent or delay almost half of cases


GPT, Claude, Llama? How to tell which AI model is best

Beware model-makers marking their own homework

How America built an AI tool to predict Taliban attacks

“Raven Sentry” was a successful experiment in open-source intelligence

Gene-editing drugs are moving from lab to clinic at lightning speed

The promising treatments still face technical and economic hurdles, though