why the hydro power generator (turbine) is placed at the lower part of the river?
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Answer:
Inferences about animal minds have typically been based upon the behavioral repertoire and ecological adaptations of the species in question. Supporting evidence can be obtained from cross-species comparisons of brain structure, function and organization, particularly comparisons between the brains of animals and humans. Here we describe several brain systems and functions which appear to be linked with mental processes in man and might, therefore, serve as markers for homologous or similar processes in animals.
Answer:
The theory is to build a dam on a large river that has a large drop in elevation (there are not many hydroelectric plants in Kansas or Florida). The dam stores lots of water behind it in the reservoir. Near the bottom of the dam wall there is the water intake. Gravity causes it to fall through the penstock inside the dam. At the end of the penstock there is a turbine propellor, which is turned by the moving water. The shaft from the turbine goes up into the generator, which produces the power. Power lines are connected to the generator that carry electricity to your home and mine. The water continues past the propellor through the tailrace into the river past the dam. By the way, it is not a good idea to be playing in the water right below a dam when water is releasedSo just how do we get electricity from water? Actually, hydroelectric and coal-fired power plants produce electricity in a similar way. In both cases a power source is used to turn a propeller-like piece called a turbine, which then turns a metal shaft in an electric generator, which is the motor that produces electricity. A coal-fired power plant uses steam to turn the turbine blades; whereas a hydroelectric plant uses falling water to turn the turbine. The results are the same.