Two-dimensional experiments in 2018 showed evidence of four-dimensional existence. Electrons moved in two dimensions when influenced by a magnetic field, hinting at how a similar effect would ...

This is difficult to visualize, as we can only perceive the world around us as a three-dimensional space, and even more challenging to measure. An example of a four-dimensional object is the ...

IN works on relativity little mention is made of the plane in which light travels in four dimensional ... of light in a three dimensional plane at right angles to its world-line, the form of ...