Consumer & Gadgets

Sweat-powered sticker turns your drinking cup into a health sensor

A team of engineers at the University of California San Diego has developed an electronic sticker that can monitor a person's vitamin C levels using the sweat from their fingertips—no blood draws, lab visits or batteries ...

Internet

AI produces shallower knowledge than web search, study finds

Learning about a topic by interacting with AI chatbots like ChatGPT rather than following links provided by web search can produce shallower knowledge. Advice given on the basis of this shallow knowledge tends to be sparser, ...

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