Resumen de The case of the disappearing daguerreotypes.
This article discusses the efforts taken by conservator Ralph Wiegandt and physicist Nicholas Bigelow to preserve the daguerreotypes featured in the International Center of Photography in New York City's "Young America" exhibit following the destruction of several images by the display lighting. Topics include the discovery of the daguerreotype medium by French artist Louis-Jacques-Mandé Daguerre in 1839, the impact of a light-induced Kirkendall effect on the silver daguerreotype plates, and the effects of the sea air in Boston, Massachusetts, where the plates had originally been exposed, on the development of silver-chloride crystals capable of clouding over the original image.
