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.
This startup wants to copy you into an embryo for organ harvesting
With plans to create realistic synthetic embryos, grown in jars, Renewal Bio is on a journey to the horizon of science and ethics.
This artist is dominating AI-generated art. And he’s not happy about it.
Greg Rutkowski is a more popular prompt than Picasso.
VR is as good as psychedelics at helping people reach transcendence
On key metrics, a VR experience elicited a response indistinguishable from subjects who took medium doses of LSD or magic mushrooms.
This nanoparticle could be the key to a universal covid vaccine
Ending the covid pandemic might well require a vaccine that protects against any new strains. Researchers may have found a strategy that will work.
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.