Nanometal (ナノメタル, also known as Nanomachines Nanometaru) (ナノマシン, Nanomashin) is a fictional extraterrestrial alloy used by the Bilusaludo aliens in the GODZILLA anime trilogy. It is utilized in the construction of various weapons, most prominently the anti-Godzilla superweapon Mechagodzilla.
In the year 2046, the Bilusaludo, in cooperation with humanity, secretly constructed the anti-Godzilla superweapon Mechagodzilla from Nanometal in Hamamutsu, Japan. Godzilla breached the facility where Mechagodzilla was being built in March, but the Bilusaludo scientists were unable to activate Mechagodzilla, forcing the machine to be abandoned in the ensuing decisive battle between Godzilla and the United Earth in Hamamatsu.
Mulu-elu Galu-gu and Rilu-elu Belu-be discovered that the arrowheads used by the Houtua were constructed from Nanometal, the same material used to construct Mechagodzilla 20,000 years ago. Galu-gu believed this was a sign that the facility where Mechagodzilla was built could still exist and be viable.
Nanometal possesses the unique attribute of being able to act autonomously, however it requires 100 gigawatts worth of power from thermonuclear reactors in order to function. It has the capacity to regenerate, demonstrated when the Nanometal-injected Gigan instantly reformed parts of its body that were blasted away by Godzilla's Atomic Breath. Because it is composed of individual nanomachines, Nanometal can deform, reshape, and move like a fluid. In addition, Nanometal can be spread over a large area to diffuse incoming projectile and energy attacks, such as Godzilla's Atomic Breath. The Nanometal composing Mechagodzilla remained active over a period of 20,000 years, and because its limiter was damaged it continued to grow at an accelerated rate during that time, forming a city-sized fortress 14 kilometers in diameter named "Mechagodzilla City." Nanometal has the ability to cover and assimilate lifeforms, in a process called Nanometalization (ナノメタル化. Individuals that are Nanometalized become one with the Nanometal itself, something the Bilusaludo consider necessary to truly ensure survival and enable proper use of Nanometal weapons such as the Nanometaru-ka)Vultures. The Bilusaludo intended to Nanometalize the entire planet in order to quickly restore the advanced civilization that was destroyed by Godzilla.
Mulu-elu Galu-gu after being Nanometalized
During a battle between Godzilla and Gigan in Yarkant, China as part of "Operation: Long March," Godzilla severely damaged Gigan's wings, arms and head. The Bilusaludo dedeployed Gigan in Hotan in 2045 and injected him with experimental Nanometal, which caused him to instantly heal from his injuries. The Nanometal allowed Gigan to regenerate after entire parts of his body were blasted off by Godzilla, but Godzilla was able to completely destroy Gigan with a concentrated blast of atomic breath, leaving no trace of the monster behind.
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