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Energy in Ecosystems (2002)

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Any ecosystem needs energy to sustain it, and the organisms within it. This energy comes in massive quantities from the Sun, although only a tiny fraction of the solar energy hitting the Earth goes towards sustaining life. The flow of energy through an ecosystem is complex, and vital to sustaining all life within it.

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00:25
Energy in Ecosystems

Stem Cells: The Ethical Issue (2006)

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This program tackles one of the most contentious areas of contemporary science: embryonic stem cell research. Different viewpoints are presented, and speakers include: Professor Alan Trounson, prominent stem cell scientist; Father Norman Ford, an ethics commentator; Patients with life-threatening medical conditions.

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00:20
Stem Cells: The Ethical Issue

Understanding Stem Cells (2006)

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An introduction to stem cells while assuming no prior knowledge, and covers the following topics: what stem cells are, the difference between embryonic and adult stem cells, IVF as a key source of embryonic stem cells, therapeutic cloning (somatic cell nuclear transfer), the difference between therapeutic and reproductive cloning, potential medical applications of stem cell research and a brief

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00:31
Understanding Stem Cells

Minimum Impact: Take Only Photos, Leave Only Footprints (2005)

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Getting outdoors is one of the great pleasures in life. But our expeditions into natural environments can also cause real horror stories to unfold. Discarded rubbish causes the waterways to become clogged, a campfire can leave a nasty visual scar that can last for years. How can we avoid causing these problems? This program examines ways to minimise our impact when enjoying the outdoors.

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00:24
Minimum Impact: Take Only Photos, Leave Only Footprints

Global Warming: You Can Make a Difference (2006)

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Our appetite for the earth's resources and consumer goods has led to increased levels of carbon dioxide entering our atmosphere, trapping more heat from the sun and leading to global warming of the atmosphere.

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00:27
Global Warming: You Can Make a Difference

An Evening with Edgar Allan Poe (2000)

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Includes a dramatization of "A Tell-Tale Heart" (25 min.); Performances of his poetry including This program from the Master Poets Collection features "To My Mother," The Conqueror Worm," "Annabel Lee," "Eldorado," "Evening Star," "To Helen," "The Haunted Palace," "Israfel," "The City in the Sea" and "The Raven"(34 min.); Stories & Tales Audio Theater (approx.116 min.) includes "The Cask of

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02:56
An Evening with Edgar Allan Poe

World War I (2004)

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Part I: The War in Europe: Uses archival footage to look at the roots of the war in Europe; the weapons of war including chemical warfare, air planes, and submarines; the United States enters the war; Support of the war including industrial production, rationing, government price controls, propaganda, and taxes and bonds.

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01:10
World War I

The Story of Math: Disc 2 (2008)

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MATHEMATICS FORMS the foundation for nearly everything we do--from finance to physics, and architecture to astronomy. Math not only describes our world, but also reveals its beauty and mystery.

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Length: 
01:57
The Story of Math: Disc 2

The Story of Math: Disc 1 (2008)

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MATHEMATICS FORMS the foundation for nearly everything we do--from finance to physics, and architecture to astronomy. Math not only describes our world, but also reveals its beauty and mystery.

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Length: 
01:55
The Story of Math: Disc 1

Eat Right! The Food Pyramid (2006)

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The new USDA dietary guidelines and revised food pyramid are out. The 2005 report suggests that “soft drinks, donuts, and french fries are the foundation for a healthy diet.” Wow! Nutrition education could become the hot course this year. OK, so that wasn’t exactly what the guidelines said; so dream on. What they really said was more like, “Grandma was right!

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Length: 
00:21
Eat Right! The Food Pyramid

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