


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.

Do women make better doctors than men?
Research suggests yes

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