Hi, According to lawa of physics, it is assumed that a perfect radiator is a black body! An example is our sun, who looks white from here. May be there is no difference between balck and white. After all, our eyes are sensitive only to ceratin spectral width, is it not? Read Langston Hughes' poems on black or even Maya Angelou's. Regards! Om shaantiH! - J. K. Mohana Rao