earticle

영어

Asia-Pacific countries have tropical and subtropical climate with high rainfall each year. Indonesia is a country in Southeast Asia which has a tropical climate and very high rainfall, that has two seasons per year, they are rainy season and dry season. Rain drops that fall to the earth's surface occur through a long process called the hydrologic cycle. The cycle starts from the evaporation of water in the earth's surface by the heat of the sun, the condensation of water vapor to form clouds, until the clouds become saturated and eventually become rain. Rain water that absorb by the soil is very useful, such as ground water. Moreover, the rain has potential force and kinetic force. Thus, if the force that contain in the rain can be utilized as much as possible, we will get great benefits, especially for Indonesia, which is a tropical country with high rainfall. In addition, by using this system as an alternative electrical energy source, we do not need to worry about the power outages, because when it is rain, this system could produce electrical energy. This is the main idea why the author has decided to study about this research.