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Washington/Ottawa, May 12 (Canadian-Media): Library of Congress (LOC)'s Preservation Research and Testing Division was visited on May 9 by Middle- and high-school students as part of hands-on pilot program focusing on preservation science, LOC reports said.
Library’s hyperspectral camera system is used by the students alongside Library scientists to discover hidden writing in documents.
the Library had relied, for the past decade, on increasingly sophisticated hyperspectral imaging technology to discover hidden information the human eye cannot detect from manuscripts, maps and other artifacts.
Imaging involves digitally photographing an object at multiple wavelengths spanning the ultraviolet through the visible and into the near-infrared.
Discrete components in an object—inks, glues, parchment—respond in unique ways to the different wavelengths.
Photo by Shawn Miller. Courtesy of Library of Congress
So at one wavelength, one ink may almost melt away, revealing another ink below.
The Preservation Research and Testing Division is conducting its pilot with the Library’s Educational Outreach Office. The goal is to introduce students to preservation science and its importance to protecting cultural and historical heritage within the Library’s collections.
The program would reportedly be offered on a monthly basis, in the fall.