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<https://www.aljazeera.net/news/scienceandtechnology/2021/9/19/%D9%84%D9%84%D8%AA%D8%BA%D9%84%D8%A8-%D8%B9%D9%84%D9%89-%D8%A7%D9%84%D8%A8%D8%B7%D8%A1-%D8%B9%D9%86%D8%AF-%D8%A7%D9%84%D8%A5%D8%B7%D9%84%D8%A7%D9%82-%D9%83%D9%8A%D9%81-%D9%8A%D9%85%D9%83%D9%86%D9%83>