In the race for the most powerful computers, Fugaku, a Japanese supercomputer, recently beat American and Chinese machines. Fugaku, Japan’s new supercomputer, at the Riken Center for Computational Science in Kobe. The machine carried out 2.8 times more calculations a second than an IBM system in Tennessee.Credit...Dai Kurokawa/EPA, via Shutterstock China and the United States are locked in a conte