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Demonstrates a variety of natural childbirth labor techniques. Covers having labor support from people you trust and creating a comfortable environment for birth. Includes techniques for early labor, active labor/transition, back labor, long labor, and positions for pushing and birth. Concludes with comments by women who have used these techniques. NOTE: Shows actual birth footage.
(Source: DCMP)
The estuary is part of the Plum Island Ecosystems LTER (Long Term Ecological Research). The LTER Network was created by the National Science Foundation (NSF) in 1980 to conduct research on ecological issues that can last decades and span huge geographical areas. Biogeochemist Anne Giblin, of the Marine Biological Laboratory, is leading a team of researchers who are studying the Plum Island salt marshes to determine how this 2,000-year-old ecosystem is holding up under climate change, land use changes, and sea-level rise. Part of the National Science Foundation Series “Science Nation.”
Everyday examples and laboratory experiments explain and demonstrate the concept of waves as they relate to physics. Three segments cover the characteristics of transverse and longitudinal waves and the reflection and refraction of waves. Complex physics is made clearer by the lab demonstrations.
Two MIT students discuss the relationship between photography and science. They use various methods and instruments to explain how long exposure photography can help measure the speed of an airplane, observe the rotation of the earth, or create light paintings.
Longitudinal waves carry energy through air, water, and solids. They compress and expand the medium in the same direction as the energy is transferred.
Long necks gave sauropods a huge advantage when it came to food. This benefit also enabled them to become the biggest terrestrial animals of all time. Part of the “Eons” series.
For nearly 40 years, Dr. Ellen Ketterson and her research team from Indiana University have been studying juncos in the mountain forests of Virginia. This segment introduces viewers to the junco, the researchers, and the core methods they use to study birds. Set in field, lab, and aviary locations, one landmark study is highlighted in detail: a long-term field experiment investigating the complex effects of the hormone testosterone on behavior, physiology, and evolutionary fitness. Part of Ordinary Extraordinary Junco (Chapter 2).
Explore the basic elements of pregnancy, labor, and childbirth in four chapters. Observe Deborah's experience from the beginning to the end of the childbirth process. Learn techniques to alleviate the pain of labor. Includes graphic depictions of childbirth.
The geology of the Great Plains is a product of long periods of sedimentary buildup followed by equally long periods of erosion. The result today is a dramatic landscape of bluffs, pinnacles and badlands that contain the rich story, of ancient sea creatures, dinosaurs and long extinct, giant land mammals. The Agate Fossil Beds is a landscape that reflects many influences from early animals roaming the valleys and hills to tribal nations they call the High Plains home. Explorers passing through or settling the American West also have a part in the story.
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.
Names the main characteristics of birds, including feathers, beaks, and wings. Notes how birds move, and shows nests and baby birds being fed. Various birds are introduced through song, narration, and examples.
Students learn the fundamental principles of ecology. They distinguish between the different types of living and non-living things found in an ecosystem. Other terminology includes ecology, ecosystem, community, population, habitat, niche, biotic factors, abiotic factors, producer, consumer, decomposer, predator, prey, energy, and food chain.
When is it necessary to induce or augment a labor? Answers questions expectant parents may have about these procedures. Explores the advantages, risks, common medical methods, and natural alternatives available for both induction and augmentation. An obstetrician lists questions expectant parents should ask their caregivers. NOTE: Concludes with footage of a vaginal birth.
How in the world do bats find their way in the dark? How do caterpillars turn into butterflies? How long can tortoises really live? Viewers have questions, and Jack has answers on this episode. Part of the "Jack Hanna's Wild Countdown" series.
Explains how epidural anesthesia works and shows step-by-step how it is administered. Covers the possible side effects, benefits, and risks, including ways to reduce the chances of complications. Shows two couples as they make decisions about pain relief during labor and birth. NOTE: Shows an actual epidural procedure and vaginal birth.
Follows a family's unplanned Cesarean birth from early labor through recovery. An obstetrician explains the Cesarean procedure and discusses ways to minimize risk. Shows the surgical procedure using 3-D animation. Presents information on breast-feeding and recovery, and how to make a Cesarean birth a fulfilling experience. NOTE: Concludes with graphic footage of an actual Cesarean surgery.
Modern emails, pagers, faxes, and cell phones! It's all about communication with Timeblazers Sam and Jen, who travel back to test out different communication methods. The message-in-a-bottle tactic proves it could be a long wait before the tide comes in to carry the bottle to sea. It wasn't that long ago that to "log on" meant to throw a log on the fire to send smoke signals. There was the Pony Express and horse-drawn stagecoaches in the 1800s. Then came carrier pigeons, the telegraph, telephones, the Post Office, and overnight delivery.
This creature was found 2,300 feet deep in the ocean. It’s a sea spider, and ones living at this depth can grow quite large, spanning almost 3 feet wide. Their 8 long legs help carry vital organs like their digestive tract. They also have 3 to 4 extra limbs, which they use for cleaning, courtship, and carrying their young. With over 1,300 different species, they are found in every ocean throughout the world. Part of the "Creatures of the Deep" Series.
Snakes certainly make it look easy when they slither forward, leaving perfect S-curve tracks behind them, but scientists have long been puzzled by the mechanics of their locomotion. Now, after a series of experiments and some computer modeling, David Hu has cracked the case. With funding from the National Science Foundation, he’s using math to determine how snakes slither and it turns out they move in a much different way than scientists have long thought.
Showing collections 1 to 4 of 4
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 to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
