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Do a runner’s energy and the energy used to light and warm us have something in common? This program explains that yes, just like machines, living things consume energy. In nature, the energy of the sun is what nourishes plants, animals, and human beings. However, humanity has learned to harness other forms of energy, such as electricity, which was largely responsible for the development of industrial societies. Scientists are also trying to master new energy forms. Hydrogen, available in unlimited quantities in water, is one of the resources of the future. (23 minutes)



 
        

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Copyright date: ©1990




     


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Nuclear Energy
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This program looks inside a modern nuclear reactor and explores its functions in detail. It also addresses nuclear safety-the various measures intended to diminish the risk of accidents and radioactive emissions. Finally, the program looks at the ste...(more details)
 
Principles of Ecology

The principles of ecology establish the relationships that interconnect humans as a biological species with each other and with their environment. This program also considers the Gaia Hypothesis and the view of the planetary ecosystem as a gigantic l...(more details)
 
Fighting Pollution

The war on pollution in all its forms is a pressing priority that brooks no delay. Although much remains to be done, the technology to restore our environment is already in existence. This program describes three examples of such technology: the puri...(more details)
 
New Energy Sources

As the need for energy increases while carbon and petroleum are known to be running out, the search is on for cleaner and safer fuels. This program looks at the pros and cons of natural gas as well as at tidal energy, which is renewable and does not ...(more details)
 
Nuclear Technology
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Just the term "nuclear energy" makes many people shudder. Yet, though it sometimes escapes human control, nuclear energy is a source of benefits, and could someday even satisfy most of our energy needs. This program takes us to the heart of the atom,...(more details)
 


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