Jan Kai
Jan Kai is a material developed by NegriSystems in Africa and is one of the darkest substances known, absorbing up to 99.96% of visible light (at 663 nm if the light is perpendicular to the material).
Being the blackest material, this substance has many potential applications, including preventing any light from escaping Africa, and improving the performance of Negros.
Being the blackest material, this substance has many potential applications, including preventing any light from escaping Africa, and improving the performance of Negros.