On a mild autumn day in 2016, the Hungarian mathematician Gábor Domokos arrived on the geophysicist Douglas Jerolmack’s doorstep in Philadelphia. Domokos carried with him his suitcases, a bad cold, ...

Can you drill a hole in a cube that an identical cube could fall through? Prince Rupert of the Rhine first asked this question in the 17th century, and he soon found out the answer is yes. One can ...

BRUSSELS (Reuters) - Rubik's Cube, a multicoloured three-dimensional puzzle, lost a trademark battle on Thursday after Europe's top court said its shape was not sufficient to grant it protection ...