A robot that can solve a Rubik’s cube puzzle in 0.38 seconds has been developed by two researchers in the US.
The current world record is 0.637 seconds, which was set by German engineer Albert Beer and his robot Sub1 Reloaded.
The researchers realised they could solve the cube more quickly by using a different type of motor in their robot.
They suggested the contraption could be tweaked to go faster but said they had “lost interest” in tuning the device.
Ben Katz, a student at the Massachusetts Institute of Technology, collaborated with Jared Di Carlo to create the robot.
“We noticed that all of the fast Rubik’s Cube solvers were using stepper motors and thought that we could do better if we used better motors,” said Mr Di Carlo in a blog post.
The motors took about 10 milliseconds to turn a side of the cube, with each move taking about 15 milliseconds in total.
Mr Katz suggested the machine could be refined but described the process as “time consuming”.
“For the time being, Jared and I have both lost interest in playing the tuning game, but we might come back to it eventually and shave off another 100 milliseconds or so,” he wrote.
The current record held by Mr Beer was recognised by Guinness World Records in 2017.

source: BBC