A participant prepares his robot for a contest during the 4th edition of the Robofest, a technology festival, at the Politehnica University of Bucharest in Bucharest, Romania, Nov. 1, 2025. The three-day festival including the 16th edition of the Robochallenge is held here from Oct. 31 to Nov. 2. (Photo by Cristian Cristel/Xinhua)
A participant manipulates his humanoid robot head during the 4th edition of the Robofest, a technology festival, at the Politehnica University of Bucharest in Bucharest, Romania, Nov. 1, 2025. The three-day festival including the 16th edition of the Robochallenge is held here from Oct. 31 to Nov. 2. (Photo by Cristian Cristel/Xinhua)
A boy listens to a participant introducing a robot during the 4th edition of the Robofest, a technology festival, at the Politehnica University of Bucharest in Bucharest, Romania, Nov. 1, 2025. The three-day festival including the 16th edition of the Robochallenge is held here from Oct. 31 to Nov. 2. (Photo by Cristian Cristel/Xinhua)
A visitor takes pictures of a humanoid robot during the 4th edition of the Robofest, a technology festival, at the Politehnica University of Bucharest in Bucharest, Romania, Nov. 1, 2025. The three-day festival including the 16th edition of the Robochallenge is held here from Oct. 31 to Nov. 2. (Photo by Cristian Cristel/Xinhua)
A participant prepares her robot for a contest during the 4th edition of the Robofest, a technology festival, at the Politehnica University of Bucharest in Bucharest, Romania, Nov. 1, 2025. The three-day festival including the 16th edition of the Robochallenge is held here from Oct. 31 to Nov. 2. (Photo by Cristian Cristel/Xinhua)
Children look at a robotic dog during the 4th edition of the Robofest, a technology festival, at the Politehnica University of Bucharest in Bucharest, Romania, Nov. 1, 2025. The three-day festival including the 16th edition of the Robochallenge is held here from Oct. 31 to Nov. 2. (Photo by Cristian Cristel/Xinhua)
Participants place their robots for a Sumo contest during the 4th edition of the Robofest, a technology festival, at the Politehnica University of Bucharest in Bucharest, Romania, Nov. 1, 2025. The three-day festival including the 16th edition of the Robochallenge is held here from Oct. 31 to Nov. 2. (Photo by Cristian Cristel/Xinhua)
