Signals and Systems
This course deals with signals, systems, and transforms, from their theoretical mathematical foundations to practical implementation in circuits and computer algorithms. At the conclusion of ELEC 301, you should have a deep understanding of the mathematics and practical issues of signals in continuous and discrete time, linear time invariant systems, convolution, and Fourier transforms.
"Nobody Would Eat Kraut": Lola Gamble Clyde on Anti-German Sentiment in Idaho During World War I
When the United States went to war against Germany in 1917, German Americans faced vicious and unfair attacks on their loyalty. Many anti-German incidents were not recorded, but they lived on powerfully in people's memories. In this 1976 interview, Lola Gamble Clyde, the daughter of an Irish-born Presbyterian minister and a teenager during World War I, described the "hysteria" that faced German Americans in rural Latah County, Idaho.
Volcanoes of other worlds
Volcanoes of Other Worlds explores and compares volcanism on other planets. What do we know about plate tectonics on other planets? Planetary bodies highlighted include the Earth's Moon, Mars, Venus and Jupiter's moon Io. Users can also link to Volcano World, an excellent web-source of volcano information.
Developing a Local Stratigraphy
In this lab activity students describe rock types in a variety of exposures to construct a regional stratigraphy. Learning goals, teaching notes and materials, equipment lists, and assessment recommendations are all provided on this website. Additionally, there are links to useful references and resources, including related field labs.
Reducing Volcanic Hazards to People and Property - An Assignment with Electronic Peer Review
Through an electronic peer review assignment, students write a general summary of major hazards to humans in the vicinity of volcanoes. Then, students are provided a list of volcanoes and must choose one to determine what actions they would take to minimize the risks to a population. This activity is detailed on this Starting Point site, which includes its learning goals, context for use, teaching notes and materials, recommended assessment method, resources, and references.
Biodiversity stuff to do: Endangered!
This Ology game site contains rules and a board for a board game dealing with extinction, particularly the modern biodiversity crisis. The players need to read endangered species facts from the board to answer questions on the spaces that they land in so that they can progress. Users can follow links to what to do and materials needed for the game.
Wonderful Life: Genes and Evolution
This is the homepage for a course focusing on evolution, the nature of science, and how to write well. The course focuses on Burgess Shale and starts with "Wonderful Life" (Gould, 1989), to study arthropods, evolution, and geologic time from this point, but also analyze why Gould is such an effective writer. The course web site contains the syllabus, descriptions of assignments, links to helpful and interesting resources (including annotated lists of relevant books and scientific controversies),
In this inquiry activity, students view NASA images of galaxies and develop a galaxy classification scheme. Students then compare and contrast their classification scheme with that developed by Edwin Hubble.
Designer Genes for a Designer World
In this series of guided inquiry activities, students explore how organisms adapt to their environments through changes in their genetic codes. The learner will: create make-believe creatures and environments that have specific characteristics; rate the success of each creature in a randomly assigned environment by examining which of the creature's characteristics help, hinder, or have no effect on the creature's success in each environment; write the genetic code for their creatures from a lis
Exploring the Extreme
This site provides lessons on key concepts in the design and flight of F-15 fighter planes. Lessons (K-8) focus on center of gravity; its relationship to thrust vectoring, pitch, and yaw; how thrust is created in a jet engine; how vectoring (directing the thrust from a jet engine) affects movement of a plane; and fuel efficiency and drag.
presents images of our own galaxy and sun, other galaxies and stars, and other heavenly bodies as viewed from different portions (or frequencies) of the electromagnetic spectrum.
Learn about wolf ecology by living the life of a wild wolf in Yellowstone National Park. Play alone or with friends in on-line multiplayer missions, explore the wilderness, hunt elk, and encounter stranger wolves in your quest to find a mate. Ultimately, your success will depend on forming a family pack, raising pups, and ensuring the survival of your pack. The WolfQuest experience goes beyond the game with an active online community where you can discuss the game with other players, chat with w
Knowledge Is Power - Use It Wisely
In this lesson, students will work in teams to do further research on the ethics issues presented in the documentary The Nobel: Visions of Our Century.
Biotic Indices of Stream Macroinvertebrates for Fun and (Educational) Profit
Water quality monitoring activities can support student inquiry into ecological concepts and pollution issues, as well as offer insight into integrating field and lab work. This exercise provides students with practice in identification (to order or family level) of stream macroinvertebrates that they've previously collected. Provided information indicates water pollution tolerance of the various taxa. Students use the data to calculate several different biotic indices for the macroinvertebrates
Lennox Castle Hospital
This unit looks at the history of institutions in the twentieth century, starting with a case study of Lennox Castle Hospital. It tries to make sense of the history of Lennox Castle, and of institutional life in general, through testimony of those who experienced institutions as inmates and as nurses, as well as through Erving Goffman's model of the 'total institution'. It examines the social bases of segregation, the professionalzsation of staff in asylums and institutions, and campaigns for ch
Gravitropism is the turning or growing in a different direction of a plant in response to gravity. This plant's shoots grow upward and exhibit negative gravitropism because they are growing away from gravity's pull.
Celery in pure water
The celery stalks take up the water and continue to live in this environment.
Roots can grow in multiple directions. Just because this plant was in a cup didn't stop the roots from growing longer and creating individual branches.
Female Artemia closeup
Close-up full body view of a female Artemia under one quarter-inch in size.
Safari 2000 Tropospheric Ozone
The fires that raged across southern Africa in August and September of 2000 produced a thick river of smoke that observers compared with the aftermath of the Kuwaiti oil fires in 1991. NASA-supported studies currently underway on the event will contribute to improved air pollution policies in the region and a better understanding of its impact on climate change.