Students define and classify alloys as mixtures, while comparing and contrasting the properties of alloys to those of pure substances. Students learn that engineers investigate the structures and properties of alloys for biomedical and transportation applications. Pre- and post-assessment handouts are provided.

Acting as engineering teams, students take measurements and make calculations to determine the specific strength of various alloys and then report their data to the rest of the class. Using this class data, students write data-based recommendations to NASA regarding the best alloy to use in the construction of the engine and engine turbines for the Space Launch System that will eventually be used to transport astronauts to Mars.

The Folger Shakespeare Library provides the full searchable text of "All's Well That Ends Well" to read online or download as a PDF. All of the lines are numbered sequentially to make it easier and more convenient to find any line.

This art history video discussion examines Washington Allston's "Elijah in the Desert", 1818, oil on canvas, 125.09 x 184.78 cm / 49 1/4 x 72 3/4 inches (Museum of Fine Arts, Boston).

This art history video discussion examines Sir Lawrence Alma-Tadema's "A Reading from Homer", 1885, oil on canvas, (Philadelphia Museum of Art).

Watch alpha particles escape from a polonium nucleus, causing radioactive alpha decay. See how random decay times relate to the half life.

Watch alpha particles escape from a polonium nucleus, causing radioactive alpha decay. See how random decay times relate to the half life.

Los estudiantes aprenden acerca de la electricidad y el magnetismo mediante la construcción de altavoces

In this art history video discussion Beth Harris and Steven Zucker examine Albrecht Altdorfer's "The Battle of Issus," 1529, oil on panel. Alte Pinokothek, Munich.

This short video and interactive assessment activity is designed to teach second graders an overview of am and pm.

Aerogel, commonly called "frozen smoke," is a super-material with some amazing properties. In this lesson and its associated activity, students learn about this silicon-based solid with a sponge-like structure. Students also learn about density and how aerogel is 99.8% air by volume, making it the lightest solid known to humans! Further, students learn about basic heat transfer and how aerogel is a great thermal insulator, having 39 times more insulation than the best fiberglass insulation. Students also learn about the wide array of aerogel applications.

Students learn how nanoparticles can be creatively used for medical diagnostic purposes. They learn about buckminsterfullerenes, more commonly known as buckyballs, and about the potential for these complex carbon molecules to deliver drugs and other treatments into the human body. They brainstorm methods to track buckyballs in the body, then build a buckyball from pipe cleaners with a fluorescent tag to model how nanoparticles might be labeled and detected for use in a living organism. As an extension, students research and select appropriate radioisotopes for different medical applications.

The purpose of this lesson is to introduce students to the planet Mars. This lesson will begin by discussing the location and size of Mars relative to Earth, as well as introduce many interesting facts about this red planet. Next, the history of Martian exploration is reviewed and students discover why scientists are so interested in studying this mysterious planet. The lesson concludes with students learning about future plans to visit Mars.

This course will provide an overview of a new vision for Human-Computer Interaction (HCI) in which people are surrounded by intelligent and intuitive interfaces embedded in the everyday objects around them. It will focus on understanding enabling technologies and studying applications and experiments, and, to a lesser extent, it will address the socio-cultural impact. Students will read and discuss the most relevant articles in related areas: smart environments, smart networked objects, augmented and mixed realities, ubiquitous computing, pervasive computing, tangible computing, intelligent interfaces and wearable computing. Finally, they will be asked to come up with new ideas and start innovative projects in this area.

In this art history video discussion Dr. Beth Harris and Dr. Steven Zucker consider Ambrogio Lorenzetti's series of frescos "Allegory of Good Government", "Effects of Good Government in the City and the Country", and "Allegory and Effects of Bad Government in the City and the Country" Siena c. 1337-40. Sala della Pace (Hall of Peace) also known as the Sala dei Nove (the Hall of the Nine), Palazzo Pubblico, Siena.

In the spring of 1918, the United States was embroiled in World War I, fighting alongside the English, French, and Russians against the Central Powers of Germany and Austria-Hungary. In total, 70 million men were at war on multiple fronts across Europe, Russia, the Middle East, and Northern Africa. The tide was finally turning for the Allies after a crushing offensive by German forces mere weeks earlier. Then, a fierce enemy intervened—an outbreak of influenza that would decimate entire regiments and towns, kill civilians and soldiers alike by the millions, and rapidly become a global pandemic. This disease weakened forces on both sides, changing not only the course of the war but also the economies and population stability of every affected nation. In the long term, this particular outbreak would inspire research on an unprecedented scale and lead to advances in science and medicine, forever altering our understanding of epidemiology. From the spring of 1918 to early 1919, no aspect of life remained untouched by the pandemic for Americans at home and on the front. This exhibition explores the pandemic’s impact on American life.  This exhibition was created as part of the DPLA’s Digital Curation Program by the following students as part of Dr. Joan E. Beaudoin's course "Metadata in Theory and Practice" in the School of Library and Information Science at Wayne State University: Bethany Campbell, Michelle John, Samantha Reid-Goldberg, Anne Sexton, and John Weimer.

This course focuses on the Great Depression and World War II and how they led to a major reordering of American politics and society. We will examine how ordinary people experienced these crises and how those experiences changed their outlook on politics and the world around them.

This collection uses primary sources to explore the American Abolitionist Movement. Digital Public Library of America Primary Source Sets are designed to help students develop their critical thinking skills and draw diverse material from libraries, archives, and museums across the United States. Each set includes an overview, ten to fifteen primary sources, links to related resources, and a teaching guide. These sets were created and reviewed by the teachers on the DPLA's Education Advisory Committee.

Examines in detail the works of several American authors. Through close readings of poetry, novels, or plays, subject addresses such issues as literary influence, cultural diversity, and the writer's career. Topic: American Women Authors. This subject, crosslisted in Literature and Women's Studies, examines a range of American women authors from the seventeenth century to the present. It aims to introduce a number of literary genres and styles- the captivity narrative, slave novel, sensational, sentimental, realistic, and postmodern fiction- and also to address significant historical events in American women's history: Puritanism, the American Revolution, industrialization and urbanization in the nineteenth century, the Harlem Renaissance, World War II, the 60s civil rights movements. A primary focus will be themes studied and understood through the lens of gender: war, violence, and sexual exploitation (Keller, Rowlandson, Rowson); the relationship between women and religion (Rowlandson, Rowson, Stowe); labor, poverty, and working conditions for women (Fern, Davis, Wharton); captivity and slavery (Rowlandson, Jacobs); class struggle (Fern, Davis, Wharton, Larsen); race and identity (Keller, Jacobs, Larsen, Morrison); feminist revisions of history (Stowe, Morrison, Keller); and the myth of the fallen woman (take your pick). Essays and inclass reports will focus more particularly on specific writers and themes and will stress the skills of close reading, annotation, research, and uses of multimedia where appropriate. A classroom electronic archive has been developed for this course and will be available as a resource for images and other media materials.

Throughout the early twentieth century, women looked to break new ground in ways never before possible, and the sky literally became the limit. As the nation moved into the aviation age, many women saw flying as a way to break out of traditional societal roles. It gave women not just an opportunity for adventure and excitement, but a way to earn a living outside of the home that demanded respect. Aviatrix Ruth Bancroft Law described it, after defeating the cross-country distance record: "There is an indescribable feeling which one experiences in flying; it comes with no other form of sport or navigation. It takes courage and daring; one must be self-possessed, for there are moments when one's wits are tested to the full. Yet there is an exhilaration that compensates for all one's efforts." In this exhibition we explore the early history of aviation and the courageous women who took to the skies—aviatrixes who found freedom, broke new ground, and inspired generations of women along the way. This exhibition was created as part of the DPLA’s Digital Curation Program by the following students as part of Professor Debbie Rabina’s course "Information Services and Sources" in the School of Information and Library Science at Pratt Institute: Megan DeArmond, Diana Moronta, Laurin Paradise.