Locals and Redditors alike are baffled by a haul of 60 elaborately engraved silver metal cubes pulled from the River Sowe in Coventry in central England. A keen-eyed Redditor has identified them as ...

If you suspend a Rubik’s Cube near the corner of a room and shine lights at its exposed faces, it will cast square shadows on two walls and the floor. A real-world Rubik’s Cube has a gadget at its ...