ナショナルジオグラフィックのインスタグラム(natgeo) - 7月15日 04時15分

Video by #ChasingGenius | In Uganda, 10,000 people die every year from drinking dirty water. After living with a family who constantly became sick from water, engineer Kathy Ku knew she had to come up with a solution. Her one idea changed the lives of thousands – yours could change the world. Submit your breakthrough idea at natgeochasinggenius.com by July 31st to win $25,000 to further your idea. #ChasingGenius

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