Color Color Color (American English), or colour (Commonwealth English), is the characteristic of human visual perception described through color "categories", with names such as red, orange, yellow, green, blue, or purple. This perception of color derives from the stimulation of cone cells in the human eye by electromagnetic radiation in the visible spectrum. Color categories and physical specifications of color are associated with objects through the wavelength of the light that is reflected from them. This reflection is governed by the object's physical properties such as light absorption, emission spectra, etc. By defining a color space, colors can be identified numerically
American Journal of Physical Anthropology American Journal of Physical Anthropology The American Journal of Physical Anthropology is a peer-reviewed scientific journal and the official journal of the American Association of Physical Anthropologists. It was established in 1918 by Aleš Hrdlička (U.S. National Museum, now the Smithsonian Institution's National Museum of Natural History). The journal covers the field of physical anthropology, a discipline which Hrdlička defined in the first issue as "the study of racial anatomy, physiology and pathology." The Wistar Institute of Anatomy and Biology was the original publisher. Before launching publication, there were few outlets in the United States to publish scientific work in