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Category: Science Technology and Math

One woman watches as another examines with a magnifying glass an ornate, decorative image on a printed page

Civil War Photography: New Technologies and New Uses, a Teacher Primary Source Set from the Library of Congress

Posted by: Stephen Wesson

Can you imagine a photograph made of metal? A picture book made with egg whites? A wood-and-glass device that lets you see 3-D images? In the 1850s and 1860s, these were all cutting-edge photographic technologies. The Library's newest primary source set, "Civil War Photography: New Technologies and New Uses," immerses students in the new methods and formats that emerged in the decades around the war.

One woman watches as another examines with a magnifying glass an ornate, decorative image on a printed page

Stellar Primary Sources: An Astronomy Day Blog Round-Up

Posted by: Stephen Wesson

Astronomy Day is April 25, and we at Teaching with the Library of Congress are standing by with a cluster of blog posts featuring primary sources that explore changing ideas of the solar system and what lies beyond it. Historical documents may be rooted in the past, but they provide a powerful way for the scientists and stargazers of today to familiarize themselves with scientific practices, to observe the ways in which scientific knowledge changes over time, and to honor the legacy of those who have boldly gone before them.