Ever since Albert Einstein developed the special theory of relativity in Zurich in 1905, by «fourth dimension» one usually means time. But how can one visualize a fourth spatial dimension - in ...

Reintroduction : View from the twenty-first century -- Augmenting a 1983 history of the fourth dimension in culture and art (1900-1950) : X-rays and ether physics as the context for the "fourth ...

A group of researchers from Virginia Tech are attempting to find a fourth spatial dimension of the universe. If they succeed, their discovery would literally change how people view the world. "Since ...

(via New Scientist) For a long time now, the idea of a fourth dimension has hovered at the edge of science and science fiction, a concept so elusive and mysterious that many of us find it almost ...

Time is the fourth dimension, in addition to the length, width and height of the usual spatial cognition of our world, though most may not realise its ubiety. It is what takes our square existence ...