For 10 points, name this color that the sky appears due to Rayleigh scattering.
Oregon State researchers led by Subramanian discovered a pigment of this color called Yinmn, which is composed of yttrium, indium, and manganese. Johann Jacob Diesbach discovered a pigment of this color while in Berlin that is composed of iron and cyanide ions. Nitrogen atoms are this color in the CPK scheme of molecular modeling. Horseshow crabs have this color blood because they use copper-based hemocyanin to transport oxygen. Red litmus paper turns this color at high pH values. For 10 points, name this color that the sky appears due to Rayleigh scattering.
Oregon State researchers led by Subramanian discovered a pigment of this color called Yinmn, which is composed of yttrium, indium, and manganese.
blue