The U.S. supercomputer Frontier was crowned the world’s speediest this year, but some computer scientists say China‘s Tianhe-3 may be as fast. WSJ unpacks the tech and design of the machines as the two countries race to solve some of the world’s biggest challenges. Photo illustration: Sharon Shi U.S. vs. China This original video series explores the rivalry between the two superpowers’ competing efforts to develop the technologies that are reshaping our world. More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com/ Visit the WSJ Video Center: https://wsj.com/video On Facebook: https://www.facebook.com/pg/wsj/videos/ On Twitter: https://twitter.com/WSJ On Snapchat: https://on.wsj.com/2ratjSM #Supercomputers #China #WSJ