Just came back browsing the wiki for who knows how many years, and noted Armor Materials being there.
I'm a bit head scratching on why of all the materials to choose from, Tungsten is the one. I only know of its applications in alloys like rocket nozzles or as a core for Armor Piercing Fin Stabilized Discarding Sabot (APFSDS) rounds, instead of depleted uranium. But I can't find any real-world application for using Tungsten as Armor.
I'm mostly wondering what the source for Code Geass is that names Knightmare Armor is made out of Tungsten though.