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Library of 3383 accessible STEM media resources.
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Climb aboard the Cyclops, a microscopic research vessel, and investigate an amazing hidden world on which all living things depend. The Cyclops houses a team of scientists known as the Micronauts and guides them through their discoveries of biological classification, diversity, and ecology. In this episode, the Cyclops is washed out of the pond and tumbles into a rapidly flowing stream. In the rapids, they discover aquatic insects living under rocks. Through their careful observations, the Micronauts learn the insects are adapted for living on water-swept rocks. Part 7 of the Microscopic Monsters Series.
(Source: DCMP)
At the National Science Foundation-funded Center for Environmental Implications of Nanotechnology (CEINT), headquartered at Duke University, scientists and engineers are researching how nanoscale materials affect living things. One of CEINT's main goals is to develop tools that can help assess possible risks to human health and the environment. A key aspect of this research happens in mesocosms, which are outdoor experiments that simulate the natural environment. These simulated wetlands in Duke Forest serve as a test bed for exploring how nanomaterials move through an ecosystem and impact living things. Part of the “Science Nation” series.
The Curiosity Quest crew travels to Alaska to learn about salmon. During their visit, host Joel Greene interviews an Alaska Fish and Wildlife Specialist, who explains why Alaskan creeks are bursting with salmon. They also discuss why salmon travel thousands of miles to revisit the place they were born. Joel also visits a salmon hatchery and learns the role it plays in preserving the few species of salmon by protecting the newly hatched salmon eggs. Part of the Curiosity Quest Series.
Tells the inconvenient truth about the environment. Outlines how to conduct an eco-investigation of homes, schools, and communities to determine which daily routines waste resources or are harmful to the environment. Examines use of grocery bags, the packaging of products, food and drink, water consumption, the safety of cleaning products, and energy usage in homes. Takes a closer look at paper and other material usage in schools as well transportation in communities. Shows how individuals contribute to the problem and how to be part of the solution of eco-friendliness.
Explains the science behind the workings of a nuclear power station. The basic version explores what fission is; the role of cooling water in nuclear reactors; the nuclear fuel cycle on mining, milling, enrichment, fabrication, and spent fuel on storage and reprocessing; and other uses of nuclear energy, including "non-power" uses. The advanced version expands on this information with a specific example of a fission reaction; the use of water to vary reactor power; different methods of mining uranium; a detailed discussion of enrichment, including structure and properties of uranium hexafluoride; and two methods of enrichment: centrifuging and gas diffusion.
StormView™ is a software program that gauges how residents of hurricane-prone regions might react in the event of an imminent storm. It was developed by University of Miami professor Kenny Broad and a number of collaborators, and supported with funding from the National Science Foundation and the National Oceanic and Atmospheric Administration. It includes TV meteorologist broadcasts, newspaper stories, web stories, bulletins from NOAA and even interactions with neighbors. The StormView™ simulation provides a way for social scientists to collaborate with meteorologists to tailor more effective messages. Part of the National Science Foundation Series “Science Nation.”
Charles Darwin once boldly predicted that buried deep in the earth are transitional fossils of creatures with intermediate features between ancestral animal groups and the modern animal groups. Since Darwin’s time, many transitional fossils have been discovered, and they provide crucial insights into the origin of key structures and the creatures that possess them. And University of Chicago paleontologist and award-winning author Neil Shubin provides a first-hand account of the painstaking search for the transitional fossil of Tiktaalik, a creature with a mix of features common to fish and four-legged animals.
The speed of light is constant in a vacuum, but what about in the everyday world? Examines the behavior of light as it passes through physical substances in a collection of 23 computer-animated video shorts. Outlines Ptolemy's Law of Refraction and the concept of angle of incidence by examining light's motion through air, water, glass, and other media. Explores Snell's Law by highlighting the importance of a refractive index along with displacement, deviation, dispersion, and the role of refraction in fiber optics. Studies lens types including biconvex, convex meniscus, plano-convex, and concave models, in addition to telescopes, magnifying glasses, and the human eye.
The Pajaro Valley, in the Monterey Bay area of California, is ideally suited for agriculture. In fact, the Pajaro Valley and the nearby Salinas Valley produce nearly half of the strawberries grown in the United States yearly. But, the water source for the valley is a confined underground aquifer that is slowly being depleted. In January of 2011, the American Institute of Mathematics held a Sustainability Problems workshop with the goal of bringing together mathematicians and industry representatives to work on a variety of sustainability problems, including renewable energy, air quality, water management, and other environmental issues. Part of the National Science Foundation Series “Science Nation.”
At Virginia Polytechnic Institute and State University, Christopher Williams heads the effort to further advance 3-D printing with copper, a widely used conductor in electronics. Williams is using a process called binder jetting in which an inkjet printer selectively jets glue into a bed of copper powder, layer-by-layer. The printed copper product is then taken to a furnace to fuse the particles together. With support from the National Science Foundation, Williams is addressing a major challenge in the 3-D copper printing process, which is to eliminate the porosity that develops in the part during the process. Part of the National Science Foundation Series “Science Nation.”
What does a mirror tell us about light? Illustrates 11 computer-animated video units for one aspect of light's behavior-reflection. Euclid's geometric optics and his findings on the perception of distance and perspective lead to a discussion of the Law of Reflection, linking angle of incidence with angle of reflection, and the concepts of absorption, transmission, and diffuse reflection. Explains the principles involved with plane, concave, and convex mirrors, including vertex, principle axis, center of curvature, radius of curvature, and virtual image. Shows a group of "mirror equations" how an object's location can be determined by using the laws of reflection.
Chemist Paul Edmiston’s search for a new way to detect explosives at airports led to the creation Osorb. A swellable, organically-modified silica, or glass, capable of absorbing oil and other contaminants from water. Osorb has become the principal product of a company called ABSMaterials, where Edmiston is now chief scientist. With support from the National Science Foundation, Edmiston and his colleagues at ABSMaterials are developing water remediation technologies for cities and industries. ABSMaterials is creating formulas to address various contaminants, including hydrocarbons, pharmaceuticals, pesticides, herbicides, chlorinated solvents, and endocrine disruptors. Part of the National Science Foundation Series “Science Nation.”
Engineers are motivated to improve our quality of life, and they typically develop new products to achieve this goal. They use several steps in developing new products: design phase, testing phase, and production and maintenance phase. During the design phase, engineers specify the functional requirements of the product. They also produce a prototype to evaluate its overall effectiveness. They also consider cost, reliability, and safety. During the last two phases, engineers determine if any failures of the components are likely and where they occur. In these processes, engineers use computers to create designs, analyze functionality, and simulate how a machine, structure, or system operates.
Kathryn Johnson, an electrical engineer at the Colorado School of Mines, studies large utility-scale wind turbines. Kathryn’s research aims to make the turbines more efficient in order to capture as much of the wind’s energy as possible. Viewers also visit NSF’s National Center for Atmospheric Research, where scientists are working with local utility companies to create an advanced wind energy prediction system. Using data from sensors mounted on each turbine, the system generates a forecast specific to each turbine on a wind farm. This helps the utility company provide as much energy as possible from clean sources.
There’s been a lot of research on what happens to a river when dams are built, but what happens when a dam is torn down? With support from the National Science Foundation, Dartmouth College geographer Frank Magilligan is researching the impact of dam removal. His lab has been at the relatively small Homestead Dam, built more than 200 years ago along the Ashuelot River in New Hampshire. He and his team have collected data on the ecology and geology of the Ashuelot River both before and after the Dam removal. Now, they’ll be documenting the processes of ecological restoration and how the path of the river is changing.
With support from the National Science Foundation, computer scientists at the University of Illinois at Chicago are pushing science fiction closer to reality. They have created a wraparound virtual world in which a researcher wearing 3D glasses can take a walk through a human brain, fly over the surface of Mars, and more. In the system, known as CAVE2, an 8-foot-high screen encircles the viewer 320 degrees. A panorama of images springs from display panels, conveying a sense of being able to touch what's not really there. Part of the National Science Foundation Series “Science Nation.”
Investigates the reasons why cattle and humans have been linked together for over 30,000 years. Analyzes the anatomy of the cow's stomach, detailing the purpose of each chamber. Visit the Masai with their cattle herds and the sacred cows of India. Introduces the main cattle breed of the 800 breeds developed in England, explaining how artificial selection is used to produce desirable characteristics. Also introduces British dairy cow detailing the working of the udder and teats and the use of genetic engineering to increase milk production. Interviews Eric Schlosser, an author about the development of slaughterhouse methods in America. Also visits a family ranch where cattle are being raised in natural conditions under a grass management system.
Part of the "A 3-D Demonstration" series. Looks at physics principles behind AC and DC generators. Examines the relationship between a changing magnetic field and the induction of electric current. A hand rule is introduced to predict the generator effect in a linear length of conductor exposed to a changing magnetic field. The behavior of a rotating coil in a magnetic field leads to the practical construction of an AC motor. Introduces split-ring commutator generators, as well as the more common alternator as a means of generating DC electricity. Specific modules include Generating Electricity, Inductors, Generator Left-Hand Rule, Generator Electromotive Rule, AC Generators, and DC Generators. Correlates to all National CTE Organizational Standards (including the provisions of the Perkins Act).
Part of the "Gunther's ER" series. As Dr. Gunther von Hagens makes clear, a shortage of blood can mean that insufficient oxygen is reaching the major organs, usually resulting in shock and organ failure. Opens with a graphic bleeding demonstration, re-creating injury to blood vessels in the hand of a cadaver. Also examines the consequences of blood loss in the body's vital organs by creating knife wounds in the torso of a frozen body, then sawing it into slices to reveal the path of the blades and the shocking extent of the damage. Also explores a lesser well-known cause of blood loss-fractured bones-which von Hagens illustrates in an experiment in which a femur dissected from a fresh cadaver is made to bleed as it would in life. NOTE: Viewer discretion is advised. Contains clinically explicit language and nudity.
Showing collections 1 to 7 of 7
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
Biology related concepts
A collection containing 59 resources, curated by Benetech
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
