Cambridge startup shows tabletop fusion power machine after raising $6.2 million

Cambridge Heavy Industries has left quiet startup mode in Cambridge, Massachusetts, revealing a small, modular tabletop machine that uses lasers to fuse atoms for power, like a tiny sun, built near MIT. Co-founder and chief executive Yun Kai said it raised $6.2 million in first outside funding led by Azolla Ventures, aiming for a power plant in about ten years.