Description: Watch how we make invisible Beatles’ autographs visible with Reflectance Transform Imaging, a technique for forensic document examination.
Description: Link Love: a weekly post with links to interesting videos and stories about archival issues, technology and culture, and Washington D.C. and American history.
Description: Although America declared its independence from Great Britain in 1776, Washington, DC, did not become the nation’s capital until July 1790. Today Washington is home to many historic national monuments and landmarks. The postcards in this gallery provide scenic views of a selection of these monuments and landmarks, including several of the Smithsonian’s museums.