Learn about an important physics experiment that uses an invention that manipulates light in this interactive activity adapted from NASA.

Modeling of microelectronic devices, and basic microelectronic circuit analysis and design. Physical electronics of semiconductor junction and MOS devices. Relation of electrical behavior to internal physical processes; development of circuit models; and understanding the uses and limitations of various models. Use of incremental and large-signal techniques to analyze and design bipolar and field effect transistor circuits, with examples chosen from digital circuits, single-ended and differential linear amplifiers, and other integrated circuits. Design project. Description from the course home page: 6.012 is the header course for the department's "Devices, Circuits and Systems" concentration. The topics covered include: modeling of microelectronic devices, basic microelectronic circuit analysis and design, physical electronics of semiconductor junction and MOS devices, relation of electrical behavior to internal physical processes, development of circuit models, and understanding the uses and limitations of various models. The course uses incremental and large-signal techniques to analyze and design bipolar and field effect transistor circuits, with examples chosen from digital circuits, single-ended and differential linear amplifiers, and other integrated circuits.

What do Prairie Chickens Need in Order to Survive Today's Prairie?

This middle school unit covering ecosystems, animal behavior and symbiosis was developed through the Storyline approach. Middle school students will be figuring out why prairie chickens have a very unique dance and understand the role cows play to help ensure the dance takes place. Using this approach, students engage in science concepts to help ensure the survival of the prairie chicken.

Hands-on, project based learning for Grades 4 to 8. Students use design thinking processes to solve engineering challenges. These space engineering themed lessons will engage students as they apply creative problem-solving skills. Resource includes a full downloadable guidebook. The guidebook includes a description of the design process, 5 design challenges, student handouts, and rubrics. It also includes links to other valuable resources and connection to standards (i.e. Next Generation Science, National Standards).

In this video segment adapted from Hope in a Changing Climate, learn how an environmentally devastated ecosystem has been restored, benefiting both the local economy and global efforts to fight climate change.

In this video segment adapted from Hope in a Changing Climate, learn how an environmentally devastated ecosystem has been restored, benefiting both the local economy and global efforts to fight climate change.

Consumer products came to the fore in the economy of the 1920s, putting new technologies like radios, toasters, and electric irons into even working-class homes. A quarter of a century separates these two model kitchens

Introduces the concepts and applications of navigation techniques using celestial bodies and satellite positioning systems such as the Global Positioning System (GPS). Topics include astronomical observations, radio navigation systems, the relationship between conventional navigation results and those obtained from GPS, and the effects of the security systems, Selective Availability, and anti-spoofing on GPS results. Laboratory sessions cover the use of sextants, astronomical telescopes, and field use of GPS. Application areas covered include ship, automobile, and aircraft navigation and positioning, including very precise positioning applications.

This interactive activity adapted from A Science Odyssey Web site helps you visualize different types of plate tectonic activity and shows the impact this activity has on Earth's surface.

This 1903 police department arrest record reflects the faith in data and science espoused by some Progressives. The reputedly scientific measurements instituted by French anthropologist Alphonse Bertillon claimed to detect innate criminality and other character flaws, many associated with particular ethnic and racial groups, through physical evidence. Although it bore the stamp of scientific approval, this and other contemporary techniques for differentiating people based on race or physical characteristics incorporated widely held beliefs that Southern Europeans, Asians, and African Americans were inherently and biological different from and inferior to white Anglo Saxons. These beliefs, in turn, lent credence to the rise of Jim Crow and immigrant exclusion.

Fall River, Massachusetts, mill worker Thomas O'Donnell (who had immigrated to the U.S. from England eleven years earlier) appeared before the U.S. Senate Committee on Education and Labor on October 18, 1883, to answer the panel's questions about working-class economic conditions. An unemployed mule spinner for more than half of the year, he described the introduction of new production methods at the Fall River, Massachusetts, textile factory where he worked as a mule spinner (a worker who tended the large yarn-making machines). These changes allowed the mill's owners to employ children, and they also left the mule spinner unemployed for much of the year. O'Donnell described the sharp decline in his family's living standards that followed and the ways they struggled to make ends meet.

Radio and other popular entertainments, like movies, created a truly national popular culture during the 1920s. Pausing to tune in to his favorite program, this farmer represents an extreme example of radio's broad popularity during the 1920s. For rural Americans, radios not only delivered music and sports but also vital information on commodity prices and weather reports. While they linked rural residents to the rest of the country, radio broadcasts and movie theaters also provided a vehicle for advertising and a spur for consumer culture.

Silicosis, a deadly lung disease caused when workers inhale fine particles of silica dust—a mineral found in sand, quartz, and granite—became a national cause célèbre during the Great Depression when it was recognized as a significant disease among lead, zinc, and silver miners, sandblasters, and foundry and tunnel workers. In 1938 the federal government declared silicosis America's number one industrial health problem and Secretary of Labor Frances Perkins convened a National Silicosis Conference in Washington, D.C. Despite such attempts to deal with the silicosis crisis, workers continued to complain of their plight. Hundreds of letters were sent to federal officials from across the country. The three letters included here (sent to Secretary Perkins) attested to workers' desperation and to their confidence that the government would agree to investigate.

Build your own system of heavenly bodies and watch the gravitational ballet. With this orbit simulator, you can set initial positions, velocities, and masses of 2, 3, or 4 bodies, and then see them orbit each other.

In this video segment adapted from Haskell Indian Nations University, student filmmakers explain why it is important to them to make a video about climate change.

In this video segment adapted from Haskell Indian Nations University, student filmmakers explain why it is important to them to make a video about climate change.

This class examines the relationship between the study of natural history, both domestic and exotic, by Europeans and Americans, and exploration and exploitation of the natural world, focusing on the eighteenth and nineteenth centuries.

This class examines the relationship between the study of natural history, both domestic and exotic, by Europeans and Americans, and exploration and exploitation of the natural world, focusing on the eighteenth and nineteenth centuries.

In this video segment adapted from Navajo Technical College, meet two members of the Navajo Nation, one Elder and one scientist, as they share their observations about how precipitation has changed since they were children.

Many artists working in the decades after the American Revolution came from the ranks of artisans and mechanics. In a republic that dispensed with aristocratic patrons and royal academies, art came to be supported by a middling populace more interested in portraits than grand history painting. Sculpture in marble, time consuming and expensive, was even more remote than paints, and the new nation lacked grand palaces or mansions for display. John Frazee, born in Rahway, New Jersey in 1790, lacked the benefit of formal instruction but still progressed from carving lettering on gravestones to fashioning busts of the rich and famous. Without formal knowledge or the constraints of European customs, American-born and trained artist-artisans such as Frazee resorted to indigenous and ingenious solutions to the problems they faced in a commercializing society, such as Frazee's mechanical invention to transfer an image from painting to a marble bust.