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3모둠 - 김민우, 김진권, 박준영, 정민균

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3모둠 - 김민우, 김진권, 박준영, 정민균

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Pot in Pot Cooler(항아리 속 항아리 냉장고)

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The Meaning of Appropriate Technology (20112 정민균)

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The Meaning of Appropriate Technology (20112 정민균)

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Appropriate technology refers to a technology created in consideration of the characteristics of a community. Appropriate technology uses fewer resources, is easier to maintain, and has less impact on the environment.

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When and by Whom Was Invented (20106 박준영)

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When and by Whom Was Invented (20106 박준영)

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It is estimated that this was first used in about in 3000BC in the Mesopotamia area. This was also used in Egypt about in 2500BC.
At 1995, Mohamed Bah Abba developed the pot-in-pot refrigerator with moist sand.

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There was no refrigerator in fortuneless parts of Africa. But this was not only problem. Even if they had an refrigerator, they couldn't storage food because of the poor supply of electrical energy.So they invented 'pot in pot cooler'. They put smaller pot inside of bigger pot and fill the space between with sand. Fruits and vegetables in pots remain fresh for a longer time than at room temperature.

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First, using wet clothes. Wet cloth will block the cold air, inside the pot, to go out. Also, when water of wet cloth evaporates, water will absorb heat. This phenomenon is widely used to decline the temperature. It will make food cooler. Second, pour water to sand. Water will evaporate faster when the sand absorb  water. We can use dirt, too. On a day when it's over 40 degrees, inside the pot is 22 degrees. It is more efficient in dry climate than humid climate.

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I got to think that appropriate technology is important. If there wasn't any appropriate technology like this pot in pot cooler, the people that doesn't live well would be even harder to live.

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I think Appropriate technology is important  because It helpes  people whos lives in the poor contries or non-modernized countries.

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I think this is innovative technology because it can keep foods well without electricity. Thanks to Pot in pot cooler, many poor people  can eat food that hasn't gone bad. In the future, I hope we are able to save both foods and environment by costless innovative technology.

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The reason you think the technology is important.
-->These days, global warming is a big issue. It made the summer hotter and the winter colder. All people are sick and tired of this crazy weather. To slow down global warming, we should do something else. Because I think not depending on the machine is effective, I evaluate this product, good.