REPORTER: Few can master the Rubik's Cube at the speed Anthony Brooks can. But an estimated one in seven people worldwide have got to grips with the challenging toy, which turns 40 this year. And to celebrate, the Liberty Science Center in New Jersey has an exhibition called "Beyond Rubik's Cube". The toy's creator, Erno Rubik says his invention is like his eldest child.
ERNO RUBIK, INVENTOR OF THE RUBIK'S CUBE: "Most of my adult life I spent with the cube because I was only 30 when I created it. And right now, after 40 years I can say: 'I know the cube, I know what happened around the cube.'"
REPORTER: There are many forms of the cube on show - from the first simple wooden prototypes to a bejeweled version worth $2.5 million U.S. dollars. Paul Hoffman, CEO of the Liberty Science Center, says Rubik's Cube is more than a toy - it blurs the boundaries between science and art.
PAUL HOFFMAN, CEO OF LIBERTY SCIENCE CENTER: "That's why we call this 'Beyond Rubik's Cube,' because it's not about the cube. It's about the intersection of engineering, that brilliant mechanism inside the cube; design, of course the colors of it, and mathematics, that 43 quintillion possibilities. "
REPORTER: And if you gave up trying to crack the cube a long time ago, why not leave it to an obliging robot?
A quintillion is a number equal to one followed by 18 zeros in the USA, or 30 zeros in the UK.