Tiny radio frequency identification (RFID) chips can enable the tracking of everything from pets to batches of razor blades. But their need for antennas to transmit data has held up efforts to shrink them. Now Hitachi has embedded an internal antenna in an RFID chip the size of a fleck of ground pepper using standard semiconductor manufacturing techniques. Special readers provide power to activate the chips and can scan identification numbers from a distance of about one millimeter. Because of the short communication distance, the new chips are not suited for product tracking, but they could be used to authenticate documents such as bank notes, passports, gift certificates, and securities. Hitachi is seeking customers before starting commercial production of the chips, but once a market is found, the chips could be in use within a year.
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“I have suddenly switched my views on whether these things are going to be more intelligent than us.”
ChatGPT is going to change education, not destroy it
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Meet the people who use Notion to plan their whole lives
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Learning to code isn’t enough
Historically, learn-to-code efforts have provided opportunities for the few, but new efforts are aiming to be inclusive.
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