President Donald Trump and First Lady Melania Trump attended the Commander-in-Chief Inaugural Ball and the Liberty Inaugural ...

We’ve all seen videos of Rubik’s cube champions who can solve the puzzle in less than 5 seconds. And there are cube-twisting robots that can solve the cube even faster, often in under a second.

It has been quite a while since we looked in on the world of automated Rubik’s cube solving ... the machine can solve 2, 3, 4, and 5 piece cubes. [David] wasn’t quite satisfied with that ...