Video: The robotic versions of competitive sports are usually disappointing at best -- but not when it comes to sumo wrestling. The human titans who try to slowly push each other out of a circular ring are actually far less exciting than these tiny zippy robots whose matches are usually over almost as quickly as they begin.
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Video: Sumo is a sport that is steeped in tradition, so it shouldn't be a surprise that making the Dohyo, or sumo wrestling ring, is a painstaking process that requires many different tools, people and methods. I can't count how many steps there are in the process of shaping clay and rope into a ring fit for Sumo wrestlers. The transformation from a pile of dirt into a solid, shiny and intricate circle is basically art.