But light streaming through that Patent Office window surely further reduced the legibility of our nation's most precious handwritten document. And fading of color or ink is only the most obvious ...

and visible light can result in color deterioration. Additionally, discoloration and fading may be caused by various forms of moisture, whether there's long-term high humidity in your home or ...

Yet there is another type of color called "structural color," produced when light is reflected off the ... While pigmented colors have the disadvantage of fading due to ultraviolet rays ...