Another phenomena that boils down to this is the diffraction limit in optics. I.e. the far-field diffraction pattern produced by a point source (c.f. point spre

Another phenomena that boils down to this is the diffraction limit in optics. I.e. the far-field diffraction pattern produced by a point source (c.f. point spread function) is the spatial Fourier transform of the aperture shape. Thus the aperture and the point-spread function satisfy a similar relation to the momentum-position uncertainty principle.