Tiny robots smaller than a grain of rice can sense, think, and move on their own. They could one day fix tissue inside the human body.

Over the years there have been a few CPUs designed to directly run a high-level programming language, the most common ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Marguerita is a Certified Financial Planner (CFP), Chartered Retirement Planning Counselor ...