This single reversible right and left plow model is part of a large collection of model plows that were transferred from the Department of the Interior to the U.S. National Museum in 1910. In 1952, curator Edward C. Kendall researched the model plows and desired to catalog and identify the typolo

This is a set of eight "dropping sticks" used to teach acoustics. It was made in Paris by the famous scientific instrument maker Rudolph Koenig, sometime between 1858 and 1902. This particular set was used in the introductory physics class of the Worcester Polytechnic Institute. These s

In these classroom activities developed for the exhibition America on the Move, students will use visual, analytical, and interpretive skills to examine primary sources including historical maps and answer questions about them to learn more about railroads, transportation, raci

Cast-iron toys are essentially American. Small foundries and factories were mass-producing them towards the close of the 19th century. These toys were sold in novelty stores, department stores, or mail order catalogs. One can follow along with shifts in technology by recognizing the changes in th

Founded in 1975, the Miller Center is a nonpartisan public policy institution. The Miller Center's mission is to research, reflect and report on issues of national importance to the governance of the United States, with special attention to the central role and history of the presidency. The webs