Color The science of color is sometimes called chromatics, colorimetry, or simply color science. It includes the study of the perception of color by the human eye and brain, the origin of color in materials, color theory in art, and the physics of electromagnetic radiation in the visible range (that is, what is commonly referred to simply as "light"). Electromagnetic radiation is characterized by its wavelength (or frequency) and its intensity. When the wavelength is within the visible spectrum (the range of wavelengths humans can perceive, approximately from 390 nm to 700 nm), it is known as "visible light". Most light
American Journal of Physical Anthropology of biology and medicine, along with the "American Journal of Botany", "British Medical Journal", "Journal of Paleontology", "Journal of the American Medical Association", "Journal of Zoology", "Nature", "New England Journal of Medicine", "Proceedings of the National Academy of Sciences", and "Science". According to the Journal Citation Reports, its 2011 impact factor is 2.824, ranking it 6th out of 79 in the category "Anthropology" and 23rd out of 45 in the category "Evolutionary Biology". Additionally, the journal has earned the most citations in the category "Anthropology" each year for over a decade. The Yearbook of Physical Anthropology is an annual peer-reviewed