It took them six years, but a team of lonely Japanese scientists built themselves a robotic dance partner. The Partner Ballroom Dance Robot, which moves around courtesy of three hidden wheels, is ...

BEIJING (Reuters) -Fancy a robot chess partner to test your moves on? Perhaps a robotic pet dog? Or a life-sized replica of physicist Albert Einstein that could teach you his theories on relativity?

Meet ESTHER, your new tennis-playing robot partner The machine, designed by a Georgia Tech professor of robotics, is named after Hall of Fame wheelchair champion Esther Vergeer.

PongBot is an artificial intelligence-powered tennis robot and a smart training partner available to play 24 hours a day, seven days a week.

All of these events and more appear in the new documentary “My Robot Sophia” (on digital platforms), but the film skirts gimmicks to go in a more tricky and unsettling direction.