Observatoire des droits humains (anglais seulement)

Why you can’t tie knots in four dimensions

(Version anglaise seulement)

par Zsuzsanna Dancso, Associate Professor of Mathematics, University of Sydney

We all know we live in three-dimensional space. But what does it mean when people talk about four dimensions?

Is it just a bigger kind of space? Is it “space-time”, the popular idea which emerged from Einstein’s theory of relativity?

If you have wondered what four dimensions really look like, you may have have come across drawings of a “four-dimensional cube”. But our brains are wired to interpret…

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