Summary: This Science Screen Report looks at a clean and renewable energy source that is steadily gaining scientific acceptance: hot dry rocks, otherwise known as enhanced geothermal systems. The program shows how masses of heated granite approximately 3 miles underground can be accessed with advanced drilling and computer imaging techniques, and how water forced through fissures in the granite can...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
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Summary: The Earth's surface is a fragile mask, and this Science Screen Report reveals the turmoil beneath it. A cutaway view of the planet depicts its layers-including its crust, hot mantle, and superheated core-and leads to an outline of plate tectonic theory. The Himalayas, the Matterhorn, and the Hawaiian Islands are analyzed as examples of tectonic and volcanic activity, while the core's...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
View online at AVOD
Summary: The map of the Earth is a flat picture of the Earth's surface; this BBC Horizon program presents the story of how Harold Wellman changed that picture. Hired by the New Zealand Geological Survey to map the underlying bedrock of the Southern Alps region, he noticed that there were invariably only two kinds of rock, granite and schist. His search for the boundary between the two led to the...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
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Summary: Through volcanic eruptions of molten rock, Planet Earth is forever giving birth to itself. But this engine of landmass creation is also a vehicle of cataclysmic destruction-particularly in the form of the super-volcano. This episode from the Amazing Planet series takes viewers backward into the dim reaches of geologic time and forward into the not-too-distant future to illustrate how magma and...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2010
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Summary: In this program a young environmental engineer takes viewers into the field for an in-depth look at the rock cycle and the geologic processes that occur within Earth's core, mantle, and crust. Using dynamic graphics to illustrate essential terms, the video covers the formation of igneous, sedimentary, and metamorphic rocks; their physical and chemical properties; subgroups and examples of each;...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2011