We move through three dimensions. Or do we? String theorists believe our world encompasses more than three dimensions. Without experiential evidence, the mathematical theory of space and time as a ...

Correct representation of negative and imaginary mumbers Universe is Expanding like a (Hyper) Balloon Human civilization has finally reached the stage to ask “What is time?” and unravel nature’s best ...

The fourth dimension is not just a mathematical abstraction but a feature of physical reality whose implications for space, time, and existence are genuinely difficult to process.

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 ...

(via Quanta Magazine) Mathematician Maggie Miller explores the strange and fascinating world of 4D topology — the study of shapes, or manifolds, that resemble flat Euclidean space when viewed up close ...