Applied Math and Science Education Repository
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The Landsat Program
No full textProvided by the Goddard Space Flight Center, the Landsat Program "is a series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey. Since 1972, Landsat satellites have collected information about Earth from space. This science, known as remote sensing, has matured with the Landsat Program. Landsat satellites have taken specialized digital photographs of Earthâs continents and surrounding coastal regions for over three decades, enabling people to study many aspects of our planet and to evaluate the dynamic changes caused by both natural processes and human practices."The Landsat site features a wealth of digital media, including podcasts and videos, as well as an interactive global visualization viewer which allows users access to the data gathered by the program
Conjugate Fractures form in Clay
No full textUnderstanding certain aspects of structural geology can be challenging for undergraduates, and the good people at "On the Cutting Edge" have worked to create this useful resource to help students and educators. This particular lesson plan was created by Paul Kelso of Lake Superior State University, and it was designed for students who have a bit of background knowledge of structural geology. The activity will help students learn about the concept of Mohr-Coulomb failure and also afford them a physical understanding of conjugate fracture/fault systems. As with other plans offered in this series, the piece provides information on the necessary materials (such as clay) required for the activity, along with teaching tips, assessment tools, and techniques
Interference and Diffraction
No full textIn this video from the ICT Center, learn about interference and diffraction. See how the wave properties of light are used to explain interference patterns on a screen, and learn about related technologies such as the Fabry-Perot cavity, Bragg gratings, interference filters, and antireflection coatings. In addition, learn how diffraction patterns are produced, and study the grating equation.The video runs 4:12 and is accompanied by a background essay, standards alignment, and discussion questions. Users who sign up for a free account can save the resource and download the video as well
Photodetector and Receiver Characteristics
No full textIn this video from the ICT Center, learn about fiber optic receivers. Investigate the components of an optical receiver; how a photodetector converts an optical signal to an electrical one; and the characteristics of PIN, avalanche, and metal-semiconductor-metal photodiodes.The video runs 2:07 and is accompanied by a background essay, standards alignment, and discussion questions. Users who sign up for a free account can save the resource and download the video as well
Molecular Workbench
No full textCreated by the Concord Consortium, the Molecular Workbench is "a modeling tool for designing and conducting computational experiments across science." First-time visitors can check out one of the Featured Simulations to get started. The homepage contains a number of curriculum modules which deal with chemical bonding, semiconductors, and diffusion. Visitors can learn how to create their own simulations via the online manual, which is available here as well. The Articles area is quite helpful, as it contains full-text pieces on nanoscience education, quantum chemistry, and a primer on how transistors work. A good way to look over all of the offerings here is to click on the Showcase area. Here visitors can view the Featured simulations, or look through one of five topical sections, which include Biotech and Nanotechnology. Visitors will need to install the free Molecular Workbench software, which is available for Windows, Linux, and Mac
Introduction to Alternative and Renewable Energy: Distributed Generation Electricity
No full textThis module is intended for use in a college-level introductory course in alternative and renewable energy. The document includes an overview of distributed generation electricity. The main sections covered are centralized power generation, electricity demand management, decentralized power generation and load imbalance mitigation. Many useful graphics are included which provide data on the US power grids, sources of electricity and other related topics. This module may be downloaded in PDF file format
FOA Lecture 3: Optical Fiber
No full textThis is Lecture 3 in the FOA Series on fiber optics. This lecture covers optical fiber, how it works, the types of fiber, fiber specifications, and how it is made. Running time for the lecture is 10:39. Flash is required to view the video
FOA Lecture 5: Splices and Connectors
No full textThis is the fifth lecture in the FOA series on fiber optics, covering splices and termination. This lecture covers the differences and similarities in splices and connectors and where they are used. Lectures 6 and 7 cover much more detail on fiber optic splices and connectors respectively. Those are available to view separately. Running time for the lecture is 12:21. Flash is required to view the video
FOA Lecture 7: Fiber Optic Connectors
No full textThis is the seventh lecture in the FOA series on fiber optics, covering connectors. In this lecture the presenter discusses the requirements for good connector performance, the types of connectors and the various ways that have been developed to install them. Running time for the lecture is 12:31. Flash is required to view the video
FOA Lecture 20: Other Fiber Optic Tests
No full textThis is Lecture 20 in the Fiber Optic Association's series on fiber optics. This video covers some lesser well-known tests like reflectance, CD and PMD that are important to long distance and high speed links. Running time for the lecture is 7:52. Flash is required to view the video