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Educational films. Filmed lectures. Internet videos. videorecording Videorecording.Summary: "Energy is, without a doubt, the very foundation of the universe. It's the engine that powers life and fuels the evolution of human civilization. Yet for all its importance, what energy really is and how it works remains a mystery to most non-scientists. For example: Where does most of our energy come from, and how is it sourced? How do energy technologies, both primitive and cutting-edge,...
Format: moving image
Publisher / Publication Date: 2016
Copies Available at Woodmere
2 available in Adult Non-fiction, Call number: 550 SCICall number: DVD 550 SCI
Summary: The Earth is surrounded and permeated by gases. This program, a Science Screen Report, looks at the composition, properties, and applications of fuels and gases. Through experiments and real-world examples, it illustrates how the uses of different gases relate to their weight, combustibility, and degree to which they can be compressed or liquefied. The video also discusses how fossil fuels and...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
View online at AVOD
Summary: As fossil fuels near depletion, nuclear fusion promises unlimited power supplies. This program looks at recent developments in the quest to turn the mechanism of the sun into a viable energy source. The program chronicles the efforts of Alan Sykes and his team working on START, the first spherical Tokamak, at the Culham Research Facility in England. Dr. Martin Peng, who first conceived of a...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
View online at AVOD
Summary: If the threat of global warming has been created by our reckless use of technology, can we use technology to eliminate the threat? We could try to cool the earth by deliberately polluting the atmosphere, as volcanoes do, but suppose we overcooled the planet, creating another ice age? This program suggests some less drastic solutions to the problem of global warming: reducing CO2 emissions;...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
View online at AVOD
Summary: This Science Screen Report explains the importance of the gas layers surrounding our planet and the consequences of changing them. Detailing how the atmosphere and the Sun's radiation create the greenhouse effect, the program outlines ways that human activities-including deforestation and the use of fossil fuels-have increased carbon dioxide levels and affected the ozone layer. Specific methods...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
View online at AVOD
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
View online at AVOD
Summary: Leonard Nimoy narrates this wide-ranging documentary on hydrogen-based energy solutions in the United States and around the world-including systems that are fully operational as well as those currently in development. Visiting China, Germany, Iceland, and other countries, the program examines the PEM fuel cell and equipment that incorporates fuel cell technology, avoiding fossil fuel...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: The ocean tides offer a clean and renewable energy source that can reduce reliance on fossil fuels. This Science Screen Report shows how Earth's tides are formed, illustrates their relationship to the Moon's gravitational forces, and explains how these principles can be applied to the construction of underwater turbines. The program also explores efforts to reduce the environmental impact of...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006