Explore a presentation on using metamaterials to replace natural magnetic gyrotropes in this 37-minute conference talk from the 2016 Hackaday SuperConference. Delve into Toshiro Kodera's research, covering topics such as the need for dielectric and magnetic materials, ferrite material applications and drawbacks, metamaterial concepts, and the rotation of magnetic dipole moments in traveling-wave resonators. Examine practical applications including circulators, isolators, and beam-steerable antennas. Learn about tunable metamaterial designs, non-reciprocity features, and measured transmission/reception separation. Gain insights into the advantages and limitations of metamaterials compared to conventional materials in electromagnetic applications.