China has fastest supercomputer

Engineers work on the Tianhe-1A supercomputer at the National Center for Supercomputing in Tianjin, China in August

China's installation of the world's fastest supercomputer is galvanizing efforts by U.S. government agencies and companies to restore American leadership in the technology, a key tool in such fields as climate research, product design and weapons development, reports Don Clark of the Wall Street Journal. Read more