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In this episode, Jack finds out the answers to some of nature’s biggest mysteries. Why do gorillas spend so much time in trees, and why do male lions have such shaggy manes? He also discovers why jellyfish live upside down. Part of the "Jack Hanna's Wild Countdown" series.
(Source: DCMP)
His name is HERB (Home Exploring Robot Butler) and he’s a robotic butler designed to open doors, clean tables, and even retrieve slippers. He doesn't look as human as his Japanese counterparts, but HERB has a bigger brain according to its developer Siddhartha Srinivasa at Intel Labs located on the campus of Carnegie Mellon University. With funding from the National Science Foundation, HERB is being programmed to think and function on its own and to navigate unknown environments.
Imagine robots no bigger than a fingertip scrambling through the rubble of a disaster site to search for victims or to assess damage. That’s the vision of engineer Sarah Bergbreiter and her research team at the University of Maryland. With support from the National Science Foundation (NSF), they’re building micro-robots to create legs that will ultimately allow a millimeter-scale robot to traverse rough terrain at high speeds. Part of the National Science Foundation Series “Science Nation.”
Shows the city of Chongqing on the Yangzte River to be one of the most industrialized and polluted areas in China. Drinking water for the local population is precarious at best. Some 360 million Chinese find themselves in similar circumstances. For those seeking political changes in the world's biggest dictatorship, these protests represent a small ray of light and hope.
Explores the pros and cons of building the Three Gorges Dam across the Yangzi River in China to control floods and generate electricity. Expected to be completed in 2009, it will be the biggest dam ever built anywhere in the world. Two million people will be displaced and 1,400 towns and villages will be flooded. Asks the question: Are the potential benefits worth the costs?
In this chapter, the scientists will try to find the best corn to make the biggest popcorn. They will also have a lot of fun with optical illusions. And finally they will show how eyeglasses gather light by using lasers. Part of the House of Science Series.
Canada's coastal forest is part of an ancient forest system of redwood, spruce, and cedar trees. It is also home to some of the largest aggregations of top predators in North America. The trees of this forest are huge, and forest productivity here rivals even some of the world's biggest tropical rain forests. Part of the "Nature's Microworlds" series.
As shown on the History Channel. It is the tallest and biggest mountain on Earth, as far removed from sea level as it's possible to be--and yet its sedimentary layers contain fossils that were once creatures that lived on the ocean seabed. The Himalayas formed when India smashed into Asia--propelled by plate tectonics. Everest is still rising but its height is limited--extreme erosion counteracts and limits the amount of uplift.
Discusses some of the biggest problems facing the environment today and how it is being abused. Provides an overview of the role of the greenhouse effect, carbon emissions, air pollution, and how the burning of the rainforest affects global warming. Explains the "carbon footprint" and outlines an experiment with acid rain. Shows how much water and unnecessary packaging material people use every day. Details how people can "refuse, reuse, and recycle," contributing to a healthier Earth.
As shown on the History Channel. Africa's Sahara Desert is the size of the United States, making it the largest desert in the world. It's also the hottest place on the planet. But now the series of geological discoveries has revealed this searing wasteland hides a dramatically different past. Scientists have unearthed the fossils of whales, freshwater shells, and even ancient human settlements. All clues to a story that would alter the course of human evolution and culminate in biggest climate change event of the last 10,000 years.
Dr. Scott Wing spent a decade combing the hills in the Bighorn Basin of Wyoming to find fossil evidence of an extinction event that occurred in the Southern Ocean of Antarctica around 56 million years ago. In this episode, host Emily Graslie talks with him and Dr. Kirk Johnson about how studying the fossil record helps scientists better understand climate change. Part of "The Brain Scoop" series.
Disease, pollution, and loss of habitat are killing off hundreds of species of amphibians. One of the biggest threats right now is an aquatic fungus called chytrid that infects the skin of these historically tough, resilient creatures. With funding from the National Science Foundation, Biologist Vance Vredenburg studies the disease and shares his research with scientists who are dealing with this crisis on every continent where amphibians live.
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 and Mei-Lei are resting as the day is fading. Suddenly, they hear a strange sound coming from behind the mountain that resonates throughout the village. The two friends go off to find the source of this strange sound and what they see surprises them. Two men are blowing into what look like long horns while others walk along with them and sing. They head back towards their village, confident that they have solved the mystery of the echo.
The Grizzly Bear, America's largest, most spectacular predator, was on the brink of extinction in Yellowstone National Park until the 1975 Endangered Species Act made its recovery the biggest success story in conservation history. All wild carnivores need large ecosystems to survive, but when human economic interests, food, or small children encroach into their territory, conflicts between bears and people are inevitable. As we witness the impacts of environmental degradations and human encroachment on the last grizzly habitat in the lower 48 states, we ponder whether this American wilderness icon still faces extinction or if we will be able to co-exist with it.
Everywhere one looks in Southern Louisiana there's water: rivers, bayous, swamps, the Mississippi River, and the Gulf of Mexico. And everyone in Cajun Country has a water story, or two or three or more. Its waterways support the biggest economies in Louisiana - a $70 billion a year oil and gas industry, a $2.4 billion a year fishing business, tourism and recreational sports. But these waterways are also home to some insidious polluters along a 100-mile-long stretch of the Mississippi known "Cancer Alley," the world's largest Dead Zone in the Gulf of Mexico and erosion that is costing the coastline twenty five square miles of wetlands a year.
Showing collections 1 to 2 of 2
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
