From The Verge:
If you haven’t seen robot sumo wrestling before, then you’re in for a treat. Trust me. Most robot versions of human sports are underwhelming, but as this video compilation shows, the mechanical take on Japan’s national sport is very fast and very furious. And why? Because engineers aren’t trying to copy human performance. Instead, they concentrate on the qualities that robots excel at: namely lightning-fast decision-making and insane turns of speed.