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Part of the "Green Careers" series. Presents an overview of job opportunities in this booming industry where there is a high demand for trained professionals, designers, and workers to help improve the efficiency of commercial and residential buildings through better design of new buildings and smart improvements to existing structures. Jobs profiled include the following: solar installer, lighting technician, and energy auditor.
(Source: DCMP)
A team of storm chasers crisscrosses Tornado Alley in the Midwest in search of the next mega-storm. They have installed new equipment and instruments to study two particular aspects of tornados: hail and lightning. Segment of vide from Wild Chronicles Series.
Students learn the fundamental concepts of electrical energy. Easy-to-understand animations illustrate the concepts of electric charge and electric current. Static electricity and the role it plays in creating lightning is also described. Important terminology includes protons, electrons, repel, attract, charges, charged objects, electrical discharge, electric field, and electric force.
Students explore electric current and the role it plays in electrical circuits. They also compare parallel and series circuits. The video concludes by demonstrating some fundamental concepts of electrical safety. Other important terminology includes resistance, switch, fuse, circuit breaker, short circuit, ground prong, and electric potential difference.
Defining color is a complex process that has consumed artists and scientists for many years. Takes a new approach to the understanding of color, providing a comprehensive overview of what it is, along with very clear, detailed explanations. Three-dimensional graphics help enable full understanding of all the dimensions of color and how it relates to creative visual arts.
Wildlife expert Casey Anderson treks deep into the wilderness to track a wild pack of wolves, and with the help of a high-speed camera, discovers how these animals were designed to be an apex predator. Part of the "Expedition Wild" series.
A key moment in the evolutionary saga occurred 200 million years ago, when the ferocious reptile-like animals that roamed the Earth were in the process of evolving into shrew-like mammals. But these reptilian ancestors left their mark on many parts of the human body, including skin, teeth and ears. Part of the “Your Inner Fish” series.
Moko is an explorer. As he travels the world continent by continent, he makes many friends and discovers many natural phenomena which sometimes delight him, and other times scare him. Each animated episode recounts an adventure and takes an "original story" approach to explaining these natural phenomena. In this episode, Moko wants to head off and tells Totemie that he must find the end of the world. But a fisherman tells them that no one will find what it is that they seek unless they have passed by the blue holes, or underwater cave. Moko doesn't understand but follows the path of a mysterious and immense blue hole in the middle of the ocean. This is when strange things begin happening. The sea is swirling and the sky changes color. Strange lights appear in front of their raft, then disappear. They get the impression that they are flying high above the ocean, then mysteriously they find themselves back on the beach. Moko remembers his first trip and thinks that this must be the heart of the ocean beating for his old friend.
What is a thundersnow storm? Most snow storms form when warm air moves into an area in the winter and rising warm air condenses to form snow. If the warm air rises very quickly, the condensing moisture collides with existing particles in the cloud causing electrically charged areas. When a cloud has charged areas, lightning can result. The accompanying sound is why scientists call these thundersnow storms.
A new generation of smaller, highly capable radar systems in the Dallas/Fort Worth area is able to track with more accuracy the location of tornadoes and other severe weather conditions. These new systems are spaced much closer together than current radar sensors, and the closer proximity is part of the reason the new systems can catch a tornado that could be missed by current radar. Part of the National Science Foundation Series “Science Nation.”
Access to affordable, sustainable energy supplies is a growing concern around the world. Looks at successful enterprises that are providing some renewable energy solutions. In Scotland, small-scale turbines put wind power within the reach of domestic users. In Sweden, the world's first train to be run solely on biogas has been developed. In Nepal, biogas stoves are improving the quality of life in many ways. And in India, agricultural-plant waste is being turned into solid fuel briquettes for use in industrial stoves and boilers, while a solar-energy company has developed environmentally friendly lighting technology that disadvantaged communities can afford.
In this episode, Rob Franek from The Princeton Review discusses the new changes made to the SAT. Scott also reports on the new transformations at the National Aquarium in Baltimore. All of the animals were removed, and a new coral reef was constructed. Christin explains the need for proper lighting when studying. Other segments include the history of Maine's flag, dental tips, weird and wacky movie laws, and a recipe for an apple tart. Part of the "Teen Kids News" series.
In the last few years, the Red Planet has yielded up many new clues that life may have once existed there...and may even exist there today. There is now proof that water once flowed on the surface, that Mars once had lakes, and that the frozen poles are mostly water. Mars has snow--an aurora--and lightning generated by dust storms. Most intriguing of all are the seasonal plumes of methane that just may point to bacteria living below the surface.
Every portable electronic device is fueled by chemistry, specifically through oxidation-reduction or redox reactions. In redox reactions, one compound gains electrons (reduction) and one compound loses them (oxidation). Chemists can set up reactions so that electrons are forced to move in a certain way to create an electrical current. Metals often play a key role in redox reactions, which are essential to all aspects of chemistry, particularly in many biochemical processes. Part of the series Chemistry: Challenges And Solutions.
With support from the National Science Foundation, some Brown University scientists are doing extensive research on bats, studying everything from their agility in flight to the elasticity of their bodies. Researching a bat's evolution, its structure and biomechanics in flight will help scientists better understand evolution and could lead to the development of aerodynamic materials for more lightweight, agile aircraft.
Moko is an explorer. As he travels the world continent by continent, he makes many friends and discovers many natural phenomena which sometimes delight him, and other times scare him. Each animated episode recounts an adventure and takes an "original story" approach to explaining these natural phenomena. In this episode, Moko tells himself that it is time to leave Mei-Lei's land and he gets his raft ready. A man tells him that he must take the route of the great plains to continue his journey. As he walks a great gust of wind makes him fall and drop his precious stone. Seeing it on the ground, Moko thinks of Mei-Li and tells himself he must go on for those he has left behind. Moko's heart lightens as he thinks that one day his travels will bring him back to those he loves.
The freezing and melting of water affects so much of the world. Ice crystals in thunderclouds create lightning. It is also powerful enough to crack boulders, float stones, and alter entire landscapes. Ice is a common substance, but it has some secrets and weird properties scientists have only just begun to understand. Part of the "It's Okay to Be Smart" series.
Moko is an explorer. As he travels the world continent by continent, he makes many friends and discovers many natural phenomena which sometimes delight him, and other times scare him. Each animated episode recounts an adventure and takes an "original story" approach to explaining these natural phenomena. In this episode, as a storm approaches, Moko wants to seek shelter beneath a tree on a hill. An old man warns him against staying there, and tells him to return to the village because the tree might suddenly catch fire. On his way, the tree is hit by lightning and bursts into flames. Moko is frightened by the thunderstorm. He thinks that a man who is able to predict such a thing must be a great wizard.
As a boy growing up in Brazil 40 years ago, Marc Meyers marveled at the lightweight toughness of toucan beaks that he occasionally found on the forest floor. Now, with support from the National Science Foundation, the materials scientist and mechanical and aerospace engineer at UC San Diego, is conducting the first ever detailed engineering analysis of toucan beaks. He says makers of airplanes and automobiles may benefit from his findings. In fact, panels that mimic toucan beaks may offer better protection to motorists involved in crashes.
Showing collections 1 to 7 of 7
A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
Biology related concepts
A collection containing 59 resources, curated by Benetech
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
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
