A thin, flexible electronic board, lit-up with red and infrared lights, and approximately three inches wide by three inches wide, is held above a person's forearm.

Skin-like sensor maps blood-oxygen levels anywhere in the body

A hand holding an iPhone in snowy weather

Thermal ‘earmuffs’ protect cell phone batteries from extreme temperatures

 A close-up view of a shiny etched silicon wafer

Berkeley computer theorists show path to verifying that quantum beats classical