Electrons moved in two dimensions when influenced by a magnetic field, hinting at how a similar effect would occur in the fourth dimension.

Alas, we don't have the four-dimensionsal equivalent of Abbott's three-dimensional sphere to show us the way to 4-D. (In mathematics, moving into ever higher dimensions is a walk in the park.

A pair of new research papers were just published in the journal Nature that explore the possibilities of a fourth dimension and, as difficult as any of this may be to comprehend, it seems the ...