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Take a look through a microscope at a virus attacking a cell and see the immune system in action. Viruses continue to replicate until they break apart the host cell and start spreading throughout the body, destroying healthy cells along the way. The immune system overpowers a virus with white blood cells and creates the antibodies that kill the same types of viruses quickly if they return.
(Source: DCMP)
Explores how ears work and how ears help us communicate with the world. Explains common ear problems, including blockage, infection, and hearing impairment. Discusses symptoms of these conditions and introduces doctor's diagnostic tools. Emphasizes healthy habits and stresses not to put anything in your ears smaller than your elbow. Talks about how children with hearing loss communicate and learn.
Leaf cutter ants could be called the overachievers of the insect world. They are farmers, medicine makers, and green energy producers. With support from the National Science Foundation, bacteriologist Cameron Currie studies the complex evolutionary relationships between the ants, the fungi they cultivate and eat, and the bacteria that influence this symbiosis. At the University of Wisconsin-Madison, Currie works with the Great Lakes Bioenergy Research Center on campus to explore how the ants manage to degrade cellulose. Her goal is to discover new ways humans might break down biomass into biofuels. The bacteria component of the ant colony could also help scientists develop more effective antibiotics for human health and agriculture.
Eco, the little bear, travels around the world observing human interactions with the environment. During his journey, he meets many other friends from the animal kingdom and gets a firsthand look into some of the environmental and social problems facing the planet. Eco and his friends provide ways for humans to ensure a healthy planet for the future. Part of "Eco S.O.S." series.
With recent advances in genetic and reproductive technology, couples can now rely on science to avoid giving birth to children with various genetic conditions. Explores the medical and ethical dilemmas that two couples face as they plan the birth of a child who may inherit their own genetic condition (dwarfism in one case, cystic fibrosis in the other). Bioethicists question the use of technology to ensure parents give birth only to a healthy child. NOTE: Includes footage of a baby being born via Caesarian section.
How can individuals help protect the environment? This program explores a wide variety of practical, easy-to-accomplish tasks individuals can do to make Earth a healthier place. Pollution prevention, natural resource use, and recycling are some of the key ideas highlighted.
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. Ralphie's upset when his mom tells him he's too sick to go to school because he was supposed to host a FNN (Frizzle News Network) TV broadcast on health that day. Not one to leave a student behind, Ms. Frizzle takes the class on a trip inside Ralphie's body to figure out what's ailing him. However, once inside, Ralphie's white blood cells see the bus as a threat and start to attack.
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.
A shark attack survivor now knows what it feels like to be part bionic man. 23-year-old amputee Craig Hutto has volunteered to help test a state-of-the-art prosthetic leg with powered knee and ankle joints. With support from the National Science Foundation and continued support from the National Institutes of Health, Vanderbilt University mechanical engineer Michael Goldfarb has spent several years developing the leg, which operates with special sensors, an electric motor, a battery, and computer technology. Sensors monitor the user's motion and microprocessors figure out what the person is trying to do. Goldfarb says the powered leg reduces the lag time between a real leg and a prosthetic one. Hutto confirms that the powered prosthetic is much better at anticipating his next move.
An expert on exercise physiology discusses the importance of different elements of fitness, and teenagers share personal stories about how exercise helped them achieve and maintain a healthy weight. Exercise also helps build strength, develop endurance, improve agility, boost self-confidence, and connect socially. John Ratey, a professor of psychiatry, describes the growing evidence that aerobic exercise remodels our brains, making us sharper mentally, and providing protection against mood disorders. Teens describe how exercise helped them deal with depression, anxiety, and stress.
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.
This project envisions a future where 3-D robotic systems can be produced and designed using 2-D desktop technology fabrication methods. If this feat is achieved, it would be possible for the average person to design, customize, and print a specialized robot in a matter of hours. This new project would completely automate the process, from sketches on-demand, anywhere, and with the skill of a team of professional engineers, leading to potential transformations in advanced manufacturing. The Computer Science and Artificial Intelligence Laboratory, known as CSAIL is focused on conducting groundbreaking research in artificial intelligence, computer systems, and the theory of computation, while also tackling pressing societal challenges such as education, health care, manufacturing and transportation. Part of the National Science Foundation Series “Science Nation.”
Some bandages are embedded with medicine to treat wounds, but researchers at Harvard University and Brigham and Women’s Hospital have something much more sophisticated in mind for the future of chronic wound care. With support from the National Science Foundation, engineer Ali Khademhosseini and a multidisciplinary team are bringing together advances in sensors, biomaterials, tissue engineering, microsystems technology, and microelectronics to create “smart bandages” for wounds that require ongoing care. The devices, known collectively as flexible bioelectronics, will do much more than deliver medicine. They will be able to monitor all the vital signs of the healing process and make adjustments when needed, as well as communicate the information to health professionals who are off-site.
Showing collections 1 to 3 of 3
Biology related concepts
A collection containing 59 resources, curated by Benetech
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
