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A woman with osteoporosis shares her experience, how she copes, and steps she's taken to prevent further bone loss. Physicians explain the disease, the risks and statistics, and the importance of calcium, exercise, and vitamin D earlier in life. Demonstrates a bone density test.
(Source: DCMP)
Dr. Brandon Peecook thought he had made a major paleontological discovery that was going to alter decades of prior research in the field. Then, right before he was about to present his findings, he got a phone call that changed everything. Part of "The Brain Scoop" series.
An amusement park provides the opportunity to study oscillatory systems and the variables associated with mechanical oscillation. After making observations at the park, a team heads back to the lab and creates experiments based on their observations. Part of Invisible Science and Technology Surrounding Series.
Unpredictable, stormy weather is a natural outcome of a warmer planet. As things heat, they become more volatile. From entire floating neighborhoods to massive harbor floodgates, cities around the world are trying to engineer their way to a safer future. Everything from farming to the insurance industry to building codes will have to change.
Fly into this high-tech career and learn about satellites, airplanes, and maybe even flying cars of the future. Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecraft. Part of the "I Can Be Anything I Want to Be A to Z" series.
Where is nature in the middle of a ctiy made of buildings, streets, cars, and many people? Eight-year-old Lee takes a tour of his neighborhood, pointing out the various places plants and animals are found. He notes that weather is nature too, and certainly impacts his community. Nature is all around . . . just look!
What's the difference between a venom and a poison? Host Emily Graslie highlights some cool reptiles and amphibians and discusses how they use their natural toxins to stay ahead in the evolutionary arms race. Part of "The Brain Scoop" series.
NASCAR tires are filled with nitrogen to help protect against heat caused by friction. Friction also increases the air pressure in tires, and NASCAR drivers don't want a tire to blowout during a race. The use of nitrogen helps the crew predict how hot the tires will get. Part of "The Science of Speed" series.
Dr. Chris climbs to new heights in search of Canada’s perfect view. Then, he dives in and swims with grey nurse sharks. Next, he gets a mud bath courtesy of a baby rhino and searches for the elusive platypus. Finally, he gives it everything he’s got to compete in a tropical race. Part of "The Open Road With Dr. Chris" series.
Looks at how the male and female bodies are prepared for their task of continuing the human race. Shows the characteristics of sperm and ova and how each contains a partial blueprint for the future offspring. The mechanism of cell division is shown through exceptional microphotography, and the mechanisms of heredity are carefully described. NOTE: Shows some nudity.
Glaciers are melting, sea levels are rising, and the weather is becoming more extreme. Corporations talk about optimizing resource use, saving energy and reducing greenhouse gas emissions to stop worsening climate change. They start to promote hybrid cars, plant-based detergents and new technologies… but how much do they really intend to change, and what do plants have to do with marketing?
Examines the nuclear disaster that followed an earthquake and tsunami that rocked Japan on March 11, 2011. That day, Japan was hit with the fifth strongest earthquake ever recorded. The earthquake was followed by a tsunami which caused a nuclear disaster at Fukushima Nuclear Power Plant. This documentary details the chain of errors and oversights that led to the largest nuclear accident since Chernobyl.
Peter Pritchard has seen each of the world's 300 species of turtles, but has a real affinity for the giant leatherback sea turtles on a Guyana beach. His conservation efforts with a local community insure that children learn about the turtles' habitats, behaviors, and characteristics. Watch a turtle lay her eggs and see the newly hatched babies race for the sea. Gives additional pertinent facts about this ancient species.
Corn is king. It can be found in other foods, in the ink for pens, and in gas for cars. Indeed, it's one of the most versatile substances on the planet. Today, it is a very different product than the one that once grew wild across North America. In this episode, Dr. Joe Schwarcz traces the evolution of corn. Part of the "Science to Go With Dr. Joe Schwarcz" series.
Over the past 200 years, more than two trillion metric tons of carbon dioxide have been poured into the atmosphere. This episode illustrates that carbon dioxide isn't just changing the climate on land. It's transforming the ocean in ways that haven't been seen for millions of years. Scientists around the world are in a race to understand these changes and what they will mean for thousands of species. Part of the "One Ocean" series.
Learning to incorporate a variety of eco-friendly energy sources into businesses and homes will make Earth a better place to live. Students explore photovoltaics, the design behind wind turbine technology and the creative processes behind vehicles in the American Solar Car Race. Zero energy houses of the future will use many of these technologies to produce more energy than they consume. Renewable energy technologies are important for the future of our planet.
Cars use airbags. Packages use airbags. Why shouldn't eggs use airbags too? Students model NASA's airbag landing system in this activity from "Design Squad Nation." They design and build protective covers made of balloons to protect an egg dropped from a height of three feet. Their systems model the airbag landing systems used by three NASA Mars missions. The students use the engineering design process, apply a variety of science concepts, and learn about NASA's exploration of the solar system. Part of the "Design Squad Nation" series.
Superhero Bruce Rain must stop a tornado, a blizzard, and a hurricane. As he races to stop the storms, Dr. Mother Nature explains the relationship between wind and severe weather. Part of "The Science of Climate" series.
Host Lisa Van Pay visits the scientists and engineers working to make the electric car of the future a reality today. One of the toughest parts is storing enough potential energy in the battery. Graduate student Katharine Stroukoff from the University of Texas-Austin explains how her research may help build a better battery, while Mike Nawrot and Dan Lauber, members of the MIT electric vehicle team, describe the advantages of their fully electric Porsche 914.
In this episode, host Dianna Cowern races against the clock to complete 20 physics experiments in five minutes. Feel free to try them at home but note that some require adult supervision. Part of the "Physics Girl" series.
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