I'm not sure if I get this - this is just an illusion correct? It sounds like the molecules are simply lumping together differently under the influence of the magnetic field, and along the field lines, in the kerosene fluid. I'm sure the kerosene and cobalt molecules, and the magnetic field lines of force interacted some way to create these columns based on the molecular shapes, kind of like Lego's. Just a layman's 2 cents.

I'm not sure if I get this - this is just an illusion correct?

The have a substance which can - dependingon the field applied - cause light to behave acording to different 'physics' (I use 'physics' in quotes her, because it's all our everyday physics - but the different state alter the amount of spatial dimensions in which the light can propagate. So in one setting it's 2D plus time and in another it's 3D plus time). In the fluid it's even more complex since the 2D plus time areas are local and appear and disappear with the thermal fluctuations (if I read the arxiv-article right)
They sent circular polarized, monochromatic light in - and depending on the field applied - only one polarization direction is allowed in some areas. The larger the field the more/larger such restrictive areas exist at any one time (and hence the more of the emerging light is registred as linearly polarized)

Spacetime and multiverse do not exist.

Antonio Saraiva

Spacetime and multiverse do not exist.

Antonio Saraiva

Why should we believe you?

The researcher's aren't arguing about whether they've created universes in their lab, however, instead, they are demonstrating a new kind of metamaterial that might prove useful in studying how the laws of physics might look in other universes – something that most anyone in the field would have to concede is a very useful thing.

This seems interesting; anyway before looking in other universes, maybe it is helpful to visualize clearly how the conventional Minkowski space-time 'physically' looks like as the view below.
http://www.vacuum...=7〈=en