CubeSat rocket thruster is so small it has to be made like microchips | This tiny fingernail-length space thruster chip runs on the greenest propellant of all: water.
Food fraud can cost as much as $40 billion a year. To fight it, food makers are turning to microchips. The silicon chips are smaller than a grain of sand & cost at a few cents apiece. They are made by p-Chip & use blockchain technology to trace products all the way from growers to grocery shelves.
