Fiber optics

For years, Alphabet's Taara has been delivering internet connectivity in remote areas with traffic-light-sized transmitters that communicate over long distances using beams of light. The tech has now been reduced down to a fingernail-sized chip.

A new study has demonstrated that a tiny bundle of optical fibers can continuously, accurately, and simultaneously measure six biomarkers of brain health, helping to prevent serious complications that can follow a traumatic brain injury.