China is about to send humanoid robots to work at a busy border with Vietnam. UBTECH Robotics has won a $37 million contract, to deploy its Walker S2 machines there starting this month. The assignment is led by UBTECH Robotics Corp., a Shenzhen-based company that builds full-size humanoid robots for industry and public services. EarthSnap Its engineers focus on embodied intelligence, which is artificial intelligence that controls a physical robot body, so these machines can handle messy, real-world environments. Fangchenggang is a coastal city in Guangxi near the border with Vietnam, where cargo trucks, coaches, and day travelers constantly cycle...