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The forces of sun, wind and water have changed the face of the earth just as much as tectonics. Weathering and erosion are driven by gravity, flattening the landscape. They create soil. Deposition starts the process of forming sedimentary rock.
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Without light, we wouldn't be able to see where we are going. We learn about different places light comes from and how it brightens our lives.
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Johan makes new discoveries about fish. Not every fish breathes the same way. He learns what gills are and how they work.
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Oceanography, climatology, and meteorology come into play as this segment explores the phenomena of global warming, the hole in the ozone layer, and El Nino in the earth's atmosphere. Research that scientists are conducting in space helps them understand the atmospheric mutations earth is experiencing.
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Looks at food containers, what they contain, and why they are different. Food production and packaging plants show how they protect consumers. Children design and make cookie containers for school fundraising.
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Confronts the most fundamental question of all: What is the true nature of man. At one time or another, every society has glorified conflict. Does this mean that the human species is violent by nature in some deep sense that will never change? Or is it possible to claim that we are gradually moving towards that distant horizon, where better people will create a better world?
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Reacting Metals with Hydrochloric Acid. Reacting Metals with Nitric Acid. Displacing Metals from Salts.
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Why are two legs better than four? Go back to when man first walked upright.
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Oaxaca is a vibrant land on the Pacific coast of southern Mexico. Its highlands are shrouded in mythology and reigned over by the breathtaking ruins of Monte Alban. It was the capital of the highly advanced Mixotec civilization, destroyed in a few years by Cortez and his conquistadors. .
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Rocks are complicated collections of mineral particles. Four silicate mineral groups make up 90% of the crustal rocks: mafic minerals, quartzes, feldspars, and micas. Rocks come in three basic varieties: ingenous, sedimentary, and metamophic. These are the ingredients of the rock cycle.
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This program looks at how the merchant class rose to become one of the most important in the empire.
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The revolution of solar energy failed to materialize by the end of the millennium. But the pioneers are thinking ahead and blazing a trail for the world to follow. But it's only the beginning of a long, long road from short-sighted, fast-food energy consumption to a solar world energy order.
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TARONGA ZOO - Water recycling system for animals. YANGTZE DAM - The world's largest and most controversial dam ever proposed. DUMMY PATIENT - A dummy used by medical students for training.
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With improved water management, water conservation campaigns and revolutionary techniques of water use, we can reduce the poential consequences of its scarcity. Technical innovations that create a stable production of fresh water out of seawater, brackish water and even wastewater are needed. New technologies are being developed that may one day help us preserve water both in space and on earth.
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The inner life of Islam is the mystical path known as Sufiism, and it has played a major role in the civilization. A majority of the poets of the Islamic world, and a great many of the finest musicians, architects and even scientists, have been Sufis, or strongly influenced by Sufism. This film includes a beautiful Persian garden of the 17th century, a symbol of the inner life; the Dome of the Rock in Jerusalem, the site of Mohammeds mystical "Night Journey"; and examples of Sufi practice in Egypt, Morocco and Iran. It ends in India, where the anniversary of one of the great Sufi saints of the past is celebrated with passionate devotional songs and music which can lift the audience into states of ecstasy
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Refining processes, distillation, cracking and reforming; the huge reliance on petrochemicals not only for fuels but also for a multitude of compounds from plastics to insecticides; an introduction to oil, its origins and products, and octane numbers; the problems of the scale of use, "Silent Spring" and plastic pollution; and chemistry as it faces environmental and ethical considerations.
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What better gift to offer one's classmates than friendship! Kiwi is going home today and she leaves behind a happy trail of memories. The other students decide to make some beautiful going-away presents for her.
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Considers how boats float and the role of streamlining, shape and building materials. Children design and race their own model sailboats.
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CHALLENGER DISASTER - The forensic engineering following the Challenger disaster. PYRAMIDS -Exploring the interior of the great pyramids of Gaza. TELEMEDICINE - Remote surgery for soldiers on the battlefield
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This episode examines the rapid growth of China's recent prosperity, and evaluates the long-term risk for China and the world if the great environmental, demographic, and political pressures that are growing alongside China's expanding economy explode.
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The rise in the number and severity of weather phenomena and natural disasters over the past years furnishes ominous proof that the earth's climate is changing. The global demand for energy is mushrooming. Fossil fuels, the primary cause of the climate changes, will no longer be the leading sources of energy production. Earth-shaking visions and endeavors are needed to rethink, redefine and reshape the use of energy and its sources for the future. The choice of an energy source - solar, wind, biomass, nuclear or hydroelectric - is of prime importance. Crucial to the world climate will be how quickly ways to use the energy of the sun can be developed. This is the ultimate source of all forms of commercially viable energy on earth and an inexhaustible one.
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Camouflage is an art Johan will need to master while finding treasures in primary living colors.
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How does the earth appear when viewed from space? Photography makes a contribution as it records the history of changes to our planet; wind shears for example are studied from specially designed planes.
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The Red River in northern Vietnam meanders through stunning scenery and eternal rice paddies before emptying into the fish-rich Gulf of Tonkin. Poverty, pride, Marxism, Confucianism and Buddhism have spread their influence and strengthened the resolve of this strong and self- sufficient people.
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Reacting Sodium with Water. Reacting Potassium with Water. Combustion of Magnesium and Formation of Magnesium Hydroxide. The Thermite Reaction.
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How did people spread out into the far corners of the earth? By adapting to nature or overcoming it?
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Describes how protein is intimately involved in life processes, and how proteins function as hormones; looks at the discovery of amino acids, their family formula, and polymerization of them; takes a look at peptides, denaturing albumin, and the levels of protein structure; and shows the lock and key model of enzyme action with an introduction to enzymes themselves.
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Not only are our cities and almost every product we use derived from the ground, so is almost all our energy. Yet minerals and petroleum products are only the start. Every culture has wondered about the origin and nature of the earth, and geology offers a rich and cautionary explanation.
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10 year old Rory adores taxis, of which there are 30,000 in London. Cars, bicycles, and the Underground are also used to get around. Rory, who loves to skateboard, and his family walk across the Millenium bridge and take a boat tour of the great city. They return home on a double decker bus.
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Today is a day like no other. A new student is joining Professor Iris' class. Her name is Kiwi and she is Ms. Principal's niece. After a shaky start, Kiwi enchants the other students and becomes their best friend.
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HELICOPTERS - The story of helicopter engineering. HELIUM 3 - A proposal to mine the moon for a potential energy source. EAST SPA - A remote device to extract the gas reserves on the North West Shelf in Washington.
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This episode reveals how China's traditional domestic industry met the international demand, and how Chinese industry was able to organize itself on a scale not seen in the West until the 18th century.
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This is a land of rolling hills, white cliffs, shimmering meadows and medieval castles, famous for its history.
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With each exploration Johan realizes some fun facts about birds; not every bird can fly! Johan must find a very unique type of bird that flies but not in the air.
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What is involved in designing instruments to create the particular sounds of each musical family? Children demonstrate how careful design and imagination can create instruments worthy of performance.
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Halogens. Halogens as Oxidizing Agents. Reacting Bromine with Potassium. Detecting Halides. Combustion of Sulfer and Formation of Sulfuric (IV) Acid. Phosphorus and its Properties. Self-ignition of White Phosphorus.
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This episode compares the 1768 voyage of the sailing ship "Endeavor" under Captain James Cook with the 1992 maiden voyage of the space shuttle "Endeavor" as it considers how exploration then and now is inherent in man, and how the knowledge gained contributes to mankind. For example, a robotic explorer named Dante explores an Antarctic volcano and contributes to the future exploration of Mars.
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Understanding Multiplication -
2 & 5 as Factors, 9, 1, & 0 as Factors,
3 & 4 as Factors
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Everyone needs to eat - animals, people, even plants! We talk about some of the things we eat and how they help us stay healthy and strong.
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