Considerable research is being done in the field of robotics, with the goal of producing lightweight machines capable of serving as personal assistants to humans. Demonstrating some of the advances in robot technology, seven robots walked to center stage in one pavilion and drew in the crowds with music. Some played wind instruments, their “fingers” nimbly working the keys, while another played the drums. “Their movements were so smooth and agile that they could have passed for humans in disguise,” said an observer.

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Robots entertained the audience with music