Science

I don't think that's what they're saying. They're measuring a property that should scale linearly with Landau levels and the strength of the magnetic field by a known factor. There's one possible factor for massive particles, and another for massless ones. In this experiment they observed a third value for the factor that lies between those two, one which matches the predictions of these semi-Dirac fermions. The particles in question are electrons in a semi-metal, so I think that can mean actual movement in the sense that we usually think of the word

That said this is waaay beyond my level of physics, even with the professor attempting to dumb it down for us