150 resources and 0 collections matched your query.
Library of 3383 accessible STEM media resources.
Showing resources 121 to 140 of 150
Select a resource below to get more information and link to download this resource.
Sand particles from the Sahara desert have long been known to travel across the Atlantic Ocean and southward to the Amazon rain forest. These accumulations are known as dust carpets, and they form as water molecules adhere to the sand particles. As water and sand adheres to one another, they form droplets that accumulate into clouds. However, the Mongolian desert dust carpets present problems for ecosystems upon which it falls. This program explores the science behind the storms and their impact on global climate.
(Source: DCMP)
Hurricane Sandy was the deadliest of the 2012 hurricane season and was the second costliest hurricane in U.S. history. University of Washington civil engineer Dorothy Reed and her team received a grant from the National Science Foundation to study how Hurricane Sandy affected the infrastructure of the New York Metropolitan area, including the power and transit systems. Reed and her team area creating highly detailed maps to construct a comprehensive street-by-street view of Sandy’s devastation.
Already parts of the world suffer from lack of water, and with increasing demand it's expected to get worse. To better understand and predict drought, thirty universities are collaborating in a multidisciplinary effort called the Shale Hills Project. Among the studies, is field research following the life cycle of water along the Susquehanna River Basin. With support from the National Science Foundation, civil engineer Chris Duffy and his team at Penn State are tracking several aspects of rainfall to better understand the relationship between the flow of water, drought prone areas, and urban populations.
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.”
A rip current is a narrow, fast-moving channel of water that starts near the beach and extends offshore through the line of breaking waves. If a swimmer gets caught in a rip current, the best thing they can do is stay calm. The current will not pull a swimmer underwater, but it will pull them away from shore. A swimmer caught in a rip current should float and wave for help. Do not try to swim back to shore or against the rip current. Part of the "Danger Zone" series.
In a tsunami, devastation is created by far more than the wave itself. Debris that hits homes and other structures plays a huge role in a tsunami’s destructive power. But until now, engineers could only estimate the forces at work when debris, such as a floating telephone pole, hits a house. With support from the National Science Foundation, engineers from across the country have teamed up to design and carry out a series of large-scale tests aimed at better understanding exactly what happens when debris strikes. Part of the National Science Foundation Series “Science Nation.”
At the Body Farm, the dead speak. Follows the world's first open-air crime lab with founder Bill Bass, of The University of Tennessee, for a close-up look at how cadavers decay. As proxies for murder victims, these decomposing bodies are studied in the name of science and the cause of justice. Talks about the factors and biological markers that help pinpoint time since death, including wind and weather, insects and carnivores, fire damage, soft tissue leachate, mold, and bacteria. Presents three homicide cases that hinged on data and expertise gained at the Farm, and shows Ph.D. students using forensic science and body processing. Shows human bodies in a variety of decomposition stages.
In Miki, Japan, a six-story wooden model condominium was shaken by the equivalent of a 7.5 magnitude earthquake. The test was said to be the largest simulated earthquake ever attempted with a wooden structure. The full-scale building sat on a metal shake table that rocked it violently back and forth. The table, designed to hold up to 2.5 million pounds, reproduced forces based on those recorded during the 1994 earthquake in Northridge, California. But, it was scaled up by 180 percent to simulate an earthquake so violent it would only occur an average of once every 2,500 years. Part of the "Science Nation" series.
In this episode, researchers discuss the novel applications for a self-healing reverse filter. For example, researchers are studying its application in unsanitary environments. Scientists also ask the question: Is laziness a fruitful strategy for the survival for some species? Researchers are studying the link between metabolic rate and extinction. In the final segment, weather forecasts are predicting that El Niño and La Niña are likely to intensify wildfires and increase drought risk. Part of the "4 Awesome Discoveries You Probably Didn't Hear About This Week" series.
A Category 5 hurricane is a monster of a storm that most people would want to avoid. But, Civil Engineer Arindam Chowdhury actually recreates those monster hurricane force winds in hopes of helping people better prepare for the real thing. With support from the National Science Foundation, Chowdhury and his team at Florida International University and the International Hurricane Research Center designed a 15 foot tall Wall of Wind (WOW). The goal is to see if low rise structures and building materials can withstand the same wind forces they would face in a full-blown hurricane. Part of the National Science Foundation Series “Science Nation.”
Harvard University, electrical engineers Rob Wood and Gu-Yeon Wei, and computer scientist Radhika Nagpal created the “RoboBee,” a miniature flying robot, inspired by the biology of a bee and the insect’s hive behavior. With support from the National Science Foundation and a program called Expeditions in Computing, Wood put together a diverse team of collaborators to get the RoboBee project off the ground. Ultimately, the researchers hope to build a colony in which the RoboBees interact, using their hive as a refueling station. They say RoboBees have the potential to be useful in a number of ways, including search and rescue missions, traffic monitoring, and weather mapping. Part of the National Science Foundation Series "Science Nation."
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 is enjoying Alarick's country. The warm weather has returned, the trees have flowered and food is plentiful. Moko thinks now the cold has passed life here will be easy. An old man tells him that the cold will return, but Moko doesn't want to believe him and lets time pass. He sees the beauty of the changing seasons and one morning...winter!
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.
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 learns about water tables and how streams develop. During the dry season, the river level drops and the remaining water turns to mud. He can't swim or drink the water. A man with a strange stick points the stick to the ground, and when Moko digs down there, water gushes out! Moko learns that even if no rain falls, Mother Earth could still be generous if you know the right way to ask her.
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 thinks that somewhere lies a creature that blows so hard that it makes the boughs of trees quiver and creates the desert dunes. He believes that the clouds flee before the wind comes because they are afraid of the creature. He decides to go look for it. Tired after walking beneath the hot sun, a fresh, light breeze makes his rest more pleasant. However, the creature is actually the Harmattan blowing over West Africa.
Features different systems of measurement and their value to science in five separate segments. Stardust Elements: Looks at the life cycles of stars and explains how the death of a star seeds the universe with all the elements of the periodic table. End of Dinosaurs: Debates several scientific theories about why and how dinosaurs became extinct. Earthly Thermometers: Demonstrates how the Fahrenheit, Celsius, and Kelvin scales measure the same thing in different ways and why we need precise measurements of temperature. Frozen in Time: Pieces together the past of a 5,300-year-old man whose body was preserved in ice in the Italian Alps. Hurricanes Take the Heat: Follows researchers who study how hurricanes form and try to predict where the next one will strike.
Volcanic ash is known to present hazards to aviation, infrastructure, agriculture, and human and animal health. Airborne ash coats the exteriors of aircraft, enters modern jet engines and melts while coating the interior parts thus causing damage and failure. With support from the National Science Foundation, Volcanologist Dork Sahagian and his colleagues are learning more about the aerodynamic properties of ash, and how long different sizes and shapes stay in the atmosphere. They use a wind tunnel to study how ash travels in the atmosphere during and after volcanic eruptions. They want to develop ways to predict when and for how long damaging ash will fill the skies, and when it’s safe to fly again.
David Stahle travels to ancient forests around the world, collecting tree rings to learn more about major climate and historical events dating back hundreds and thousands of years. With help from the National Science Foundation, he uses dendrochronology, or tree-ring dating, to get a snapshot of climate change over time. Stahle runs the Tree-ring Lab at the University of Arkansas, where he and fellow tree-ring researchers are learning that a trend of global warming began in the 1800s and continues today, brought about by changes in tropical sea surface temperatures of no more than a few tenths of a degree Celsius. Today Stahle is working with hydrologists and government planners in California and throughout Mexico to plan for drought and climate change events.
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, soaring over the desert, Moko and Totemie finally see the blue expanse of the ocean. Then a string of tiny islands covered in green and white. Fascinated by the view, they don't notice the wind picking up. As the wind gets stronger it shakes their kite and Totemie lets go, and Moko lets go as well so she won't fall alone. They fall into the water in a beautiful lagoon which they discover together, their courage rewarded.
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, having made their way beyond the great valley, Moko and Totemie discover a blanket of white stretching out in front of them. An old man tells them that once they get to the other side they will see what so many others have dreamt of seeing, but that they must fly like birds. He offers them a strange kite. As the wind picks up, they hang on tight and fly off from the salt pan.
