As we know that, Africa is a hot country. Plant hard to grow in hot environment with sacred water supply. However, recently a water vapor machine was designed by Sangwook Park, Sinjeong Lee, Hoyoung Lee and Hyeongju Jo. This machine is able to produce water vapor from the combination of cold air and hot air. When there is sufficient water vapor, the agriculture is able to grow on the land and using water vapor as water supply.
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