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English
Description
In lakes and rivers of the modern United States, teams of explorers are discovering forgotten shipwrecks from the American Revolution. By combing their data with cutting-edge computer graphics, the water is drained away to reveal these ships after 240 years of submersion. This modern investigation exposes startling new evidence about a nation’s against-all-odds battle for independence.
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Using the latest sonar technology, a high-tech expedition maps Bikini Atoll in the Pacific Ocean to reveal the world’s only nuclear battlefield. The survey tells the story of the U.S. atomic experiments and the warships they destroyed, including a submarine and a mighty aircraft carrier. This is the explosive tale of the dawn of the Nuclear Age and the birth of the Cold War.
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In summer 1940, Adolf Hitler had just conquered France, and only 20 miles of sea separated him from his next target: Great Britain. The mighty Luftwaffe was sent to bomb Britain into submission, destroy the Royal Air Force and set the stage for seaborne invasion. Now, we uncover the wrecks of planes and ships to reveal the truth behind the Battle of Britain.
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Draining Lake Michigan uncovers Chicago’s secret history. The latest sonar technology exposes a catastrophe that killed 300 people, solves a tragic Christmas mystery, uncovers a game-changing naval training program from World War II and reveals an engineering marvel that stops the fastest growing city in the world from choking to death.
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Ancient civilizations hid the secrets of their incredible knowledge of astronomy in their temples and palaces, built to align with the sun, on the same day, all over the world. Revealing humankind’s obsession with the sun, across thousands of years and every continent, this is architectural magic on a cosmic scale.
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Description
The American Civil War stretched far beyond the battlefield, into American rivers, along coastlines and out into the world’s oceans. Maritime archaeologists and historians go in search of submerged evidence of the Civil War’s forgotten battlegrounds. Scientific data combines with computer graphics to drain the waters and investigate a conflict that rewrote the rules of warfare forever.
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Of all the seas in all the world, the Caribbean is the most famous for pirates. Uncovering long-lost shipwrecks reveals the true story of their exploits — from Henry Morgan’s daring raid on the Spanish Main to the final weeks of the legendary Blackbeard — and tells us how the Caribbean’s unique position at the crossroads of empire turned it into the ultimate pirate sea.
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Description
There may be as many as 100,000 vessels lying on the floor of the Baltic Sea, but perhaps the most spectacular of those is the battleship Mars, which vanished over 450 years ago on its second day at sea. Shrouded in legend, this ship has recently been discovered off the coast of Sweden and is proving that it more than lives up to the many myths that surround it.
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Description
Maritime archaeologists and historians go in search of the crucial component in the trans-Atlantic slave trade: the slave ship, which transported over 12 million Africans who were sold and forced to work in the New World. By draining we reveal the cruel technology on board, see the horrific conditions and identify a wreck in Alabama that could be the last slave ship to bring Africans to American soil.
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Description
We drain away the waters of the Mediterranean to reveal, in all its former glory, an ancient Egyptian city that mysteriously disappeared in the second century B.C. Cutting-edge technology and archeological data unravel the mystery behind its extraordinary rise to international fame — and the terrifying events that led to its destruction.
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Description
While a lot of psychological research is done through experiments, for some research questions we need to see how people actually behave in the real world to discover what they are really thinking and feeling. Using a range of classic and contemporary studies, this film illustrates and evaluates the strengths, weaknesses, and limitations of three different types of non-experimental methods used by psychologists to study social behavior: Case Studies,...
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Description
This program examines the scientific method, looking at the process from reviewing the literature to formulating a hypothesis, designing an experiment, collecting data, and analyzing results. It discusses types of research design; mean, median, and mode; correlation; and reliability and validity. It also considers research ethics.
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This teleconference for teachers, administrators, and parents addresses the issues of improving comprehension; cognitive coaching; the link between thinking, reading, and writing; and the integration of instruction and assessment. The program features Syracuse University Professor Harold Herber, Professor Dorothy Strickland of Rutgers University, Robert Peterkin of Harvard University's Urban Superintendents' Program, Fairfax County (Virginia) teacher...
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Most, though not all, anthropologists agree that human culture, imagination, and symbolic thought emerged approximately 45,000 years ago. The evidence ranges from fantastic cave paintings and elaborate graves to the first fishing equipment and sturdily built huts. When, why, and what brought on this burst of modern behavior is the subject of much research. This science bulletin focuses on the field research of one of the recently excavated sites in...
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English
Description
This program transforms the family kitchen into a chemistry lab as Lisa conducts simple experiments using common household ingredients. By linking to students' prior knowledge and life experience, the video demonstrates key scientific concepts such as the scientific method and scientific procedures in a clear and entertaining way. Topics include states of matter, chemical and physical reactions, solutions, suspensions, melting, mixing, and dissolving....