Electrons
moving through a crystal usually
scatter when they hit an impurity, which
slows their progress, but the topological effects in Hasan's tantalum arsenide crystals allow electrons to travel unimpeded.
Once Ulysses was in its scheduled orbit, it began observing the solar wind and magnetic field strength at high solar latitudes, finding that the solar wind from high latitudes was
moving at about 750 km / s (
slower than expected), and that there were large magnetic waves emerging from high latitudes which
scattered galactic cosmic rays.