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The arctic ground squirrel has developed highly specialized adaptations to extreme environments. This species maintains circadian rhythms throughout the arctic summer, despite the almost ceaseless daylight during this period. The squirrels’ body clocks have evolved to work just fine without the help of the day/night cycle. With support from the National Science Foundation, physiological ecologist Cory Williams of the University of Alaska, Anchorage, and a team of researchers traveled to the Toolik Field Station in northern Alaska to study the arctic ground squirrel on its home turf. Part of the National Science Foundation Series “Science Nation.”
(Source: DCMP)
Whether they arise from human causes or forces within planet Earth itself, natural disasters threaten life and civilization with what seems to be growing frequency. Studies troubling developments in marine, arctic, wetland, and urban environments while highlighting research opportunities that may help prevent future catastrophes. Coral reef decay, Everglades habitat loss, polar ice disappearance, and global warming are all analyzed. Looks at earthquake prediction, hurricane and tornado tracking, air pollution monitoring, tsunami warning systems, and the cleanup of toxic flood sediment in New Orleans.
Part of a series that features a wide variety of video footage, photographs, diagrams, graphics, and labels. For this particular video, students will focus on how to appropriately dress when conducting experiments in a science lab. For example, students should always wear personal protective equipment. This includes aprons, safety glasses, and gloves. Part of the Science Video Vocab series.
One might never know it, but the seemingly quiet Harvard Forest in Massachusetts is actually hard at work. Like other forests, it’s busy doing some serious global housekeeping, which is being monitored by scientists at Harvard University. With support from the National Science Foundation, researchers are studying forest ecology. That research includes determining how the forest responds to carbon dioxide in the atmosphere. Part of the National Science Foundation Series “Science Nation.”
Students demonstrate the importance of emulsifiers in combining oil and water mixtures.
Queen Bees are not actually in charge of anything. Their job is to lay eggs, not to rule the hive. With support from the National Science Foundation, entomologist Gene Robinson and mechanical engineer Harry Dankowicz at the University of Illinois, Urbana-Champaign have teamed up with psychologist Whitney Tabor at the University of Connecticut to study how coordination emerges in leaderless complex societies, such as a bee hive. Part of the National Science Foundation Series “Science Nation.”
Claire Tomlin is pushing the envelope of aerospace design by building a new class of autonomous helicopters, with support from the National Science Foundation. These aircraft don’t need a pilot steering them remotely because they navigate themselves. Tomlin believes these helicopters will have applications in the military, civilian search and rescue, and many more venues.
The Center for Advanced Forestry Systems is using forestry science and collaborations among universities, industry, and the government to make commercially grown forests more productive and sustainable. With support from the National Science Foundation (NSF), research teams at Virginia Tech, North Carolina State University, and the University of Washington have teamed up through the center to study how new slow-release fertilizers could improve growth and not destroy waterways. Part of the National Science Foundation Series “Science Nation.”
George Vanderbilt pushed the technology envelope when building Biltmore Estate, and his descendants continue to promote technological advancements. Today, the estate undertakes opportunities to help the environment by running a solar farm and biodiesel operation.
Astronomer Steve Eikenberry at the University of Florida is on the hunt for black holes. With support from the National Science Foundation, he hopes to learn more about how particular black holes evolve, why there seem to be supermassive black holes at the center of most if not all galaxies, and what powers them.
In less than a second a sandfish lizard can dig its way into the sand and disappear. The sandfish's slithering moves are inspiring new robotic moves that could one day help search and rescue crews find survivors in piles of rubble left from disasters. With support from the National Science Foundation, physicist Daniel Goldman and his team at Georgia Tech are studying the lizard’s movements, using x-rays to track it underground. Their findings will contribute to engineering designs for deployable robots that could one day help canine search and rescue teams find survivors more quickly.
For as long as parents and babies have been smiling, laughing, and cooing at each other, scientists still have a lot of questions about just how these interactions help infants develop. With support from the National Science Foundation, University of Miami psychology professor Daniel Messinger and his colleagues want to learn more about child development by studying how moms, dads, and babies respond to each other. Part of the National Science Foundation Series “Science Nation.”
With support from the National Science Foundation’s Human-Centered Computing Program (HCC), Stanford University mechanical engineer Mark Cutkosky and his team are using volunteer test subjects to find out if the way walk is wearing out their knees. One of the major problems at the root of knee pain is uneven wear and tear on the knee cartilage, which leads to arthritis. Cutkosky’s research, known as Movement Retraining, focuses on alleviating pain by analyzing and possibly changing a person's stride. The goal is to slow the rate at which arthritis progresses and thereby delay or even eliminate the need for surgery. Part of the National Science Foundation Series “Science Nation.”
Sea turtles, salmon, and sharks sometimes travel the width of the ocean to return to their "breeding ground" to reproduce. With funding from the National Science Foundation, Biologist Ken Lohmann at the University of North Carolina -Chapel Hill studies the role magnetic fields play in these long distance migrations. In his lab he's done behavioral studies, manipulating environmental cues to see how young turtles respond to even small changes in magnetic fields.
It started as a project for long term space survival, when NASA estimated that crews headed to or living on Mars would spend 80% of their waking hours farming. But, with support from the National Science Foundation, research into a leaf sensor that could “call in” with its vital statistics morphed into technology that can help farmers on this planet. The goal is to save water by directly measuring a plant’s moisture level.
Invasive animals are often most abundant in habitats impacted by humans. Understanding why this is true may reveal important insights about the ecological impact of many invasive species. The invasive fire ant, Solenopsis invicta, is a notoriously pesky species that benefits when humans disturb natural areas. With support from the National Science Foundation, Dr. Joshua King at the University of Central Florida and Dr. Walter Tschinkel at Florida State University have been exploring the underlying causes and consequences of the association of fire ants with human-altered ecosystems. Part of the National Science Foundation Series “Science Nation.”
Researchers at New York University are tackling one of the major challenges in agriculture. They are trying to raise healthy plants while minimizing the use of fertilizer and the leaching of fertilizer chemicals into the environment. A team led by scientist Gloria Coruzzi and computer scientist Dennis Shasha is using the latest tools to develop new plant varieties that don't need as much nitrogen to grow. The researchers are also investigating which of the plant's genes control fertilizer uptake. Part of the "Science Nation" series.
Like everyone else, George Huber knows money doesn't grow on trees. But, ask him where gasoline comes from and he won't just tell you, he'll show you. To fully understand, Science Nation recently went with Huber to a local lumber yard in Amherst, Mass. A lumber yard is the perfect place to find cellulose, the key building block in plant cells and the organic material that gives plants their structure. So what does cellulose have to do with gasoline? A lot.
When Geologist Jeff Donnelly of the Woods Hole Oceanographic Institution (WHOI) hunts for hurricanes, he does it safely at ground level, or just slightly below. He is even able to do it without having to encounter so much as a drop of rain or a gust of wind. With funding from the National Science Foundation, Donnelly leads a team that studies long term global hurricane patterns. They’ve unearthed some interesting findings about past hurricane activity which might provide a hint about what to expect in the future.
What is fermentation? Students follow a recipe to make root beer and show the process of fermentation.
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
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
