Notes on the Fourth Dimension

By Jon Crabb

Hyperspace, ghosts, and colourful cubes — Jon Crabb on the work of Charles Howard Hinton and the cultural history of higher dimensions. more

Worlds Without End

By Philip Ball

At the end of the 19th century, inspired by radical advances in technology, physicists asserted the reality of invisible worlds — an idea through which they sought to address not only psychic phenomena such as telepathy, but also spiritual questions around the soul and immortality. Philip Ball explores this fascinating history, and how in this turn to the unseen in the face of mystery there exists a parallel to quantum physics today. more