Between the years 1790 and 1880 the U.S. Patent Office required both documentation and a three-dimensional working model to demonstrate each new invention submitted for a patent. The models helped to explain proposed innovations and compare them against similar inventions. In this online exhibiti

Learn how architects use paper to represent plans for buildings. Make two- and three-dimensional representations of your home using close observation and measurements.  Part of an OurStory module entitled Building Beautiful Buildings, this activity includes step-by-step instructions

Take a close look at two architectural drawings to learn about symmetry and scale. Part of an OurStory module entitled Building Beautiful Buildings, this activity includes step-by-step instructions, images of museum objects, and background information on architecture. OurStory is designe

People have been turning kitchens into bubble labs for hundreds of years. Benjamin Franklin and his mentor James Logan studied the optical properties of bubbles. These experiments later contributed to Franklin’s invention of bifocal glasses in 1784. Discover your inner bubble inventor

This apparatus was designed by Catherine Stern, a physicist by training and the founder of a Montessori school in her native Germany. Stern and her husband were of Jewish descent, and emigrated to New York City in 1938 to avoid persecution by the Nazis. There she developed these materials, descri

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

Khaki-colored tropical worsted material with a rolled collar with lapels, epaulets on the shoulders, two false horizontal breast pockets with small gold-colored metallic buttons, and two side pockets over the hips. The jacket is closed by four gold-colored metallic buttons. Staff sergeant chevron

To control the form of war messages, the government created the U.S. Office of War Information in June 1942. OWI sought to review and approve the design and distribution of government posters. Posters such as this one and their messages were seen as "war graphics," combining the sophisticated sty

During the American War of Independence the French government supplied large quantities of muskets to the Continental army. Several arsenals in France produced muskets but the Charleville Model 1763 was the most common and soon all French muskets were referred to as "Charlevilles." In March 1777,

This artifact is one of three known surviving components of a suite of four, and possibly five, colors carried by the Second Regiment of Continental Light Dragoons during the Revolutionary War. Although no definitive order has survived specifying the number of colors to be carried by a regiment o