Their primary mission consists of reconnoitering outlying areas. Adjusting gas compression allows users to control output.The fans spin when gas is blown on them.Gas is compressed and held in canisters from which it is injected.Refining Ultrahard Steel requires the use of blast furnaces that exist only in the Industrial City, meaning it can't be made anywhere else. The "single-edged swords" that use the material are widely known as anti-Titan weapons. Ī material that is both hard and flexible, allowing it to tear through Titan flesh. Shells: Deal a large amount of damage, but their extremely low accuracy makes it very difficult to aim and hit a target. Grapeshot: Low lethality but effective at stopping Titan movement. In order to make up for their lack of mobility, the cannons were placed on the Walls, and defensive improvements were made to the Walls (for clarity) as well. Prior to the ODM Gear, cannons were humanity's primary anti- Titan weapon. The 10 Top Cadets in the 104th Cadet Corps High endurance, strong legs, good spacial awareness, and nerves of steel are requisites. ODM gear training is a difficult process, meant to force the cadet to adapt from moving in a flat 2D plane to a 3D space. This area is also rich in natural resources such as water, ore, and natural gas. The elevation increases as you approach the center of humanity's activity zone. What lies beyond Wall Maria is a mystery. This diagram (which referenced one in the original manga) provides a more intuitive idea of how large the area left to humanity is. Ī Rough Diagram of the Human Activity Zone From Sina, it's about another 250 kilometers to the center of the interior. There is a distance of about 100 kilometers between Maria and Rose, and there are about 130 kilometers between Rose and Sina. The Walls are separated from one another in roughly equal intervals. The outermost wall is Wall Maria, the second is Wall Rose, and the centermost wall is Wall Sina. Humanity lives surrounded by three walls. A comprehensive list of all Currently Publicly Available Information ( 現在公開可能な小情報 Genzai Kōkai Kanōna ko Jōhō ?) entries from the Attack on Titan anime's first season.