المصادر: الخبر الأول: https://www.technologyreview.com/s/613123/no-ibm-didnt-just-reverse-time-with-a-quantum-computer/ الخبر الثاني: https://www.nytimes.com/2019/03/14/health/alzheimers-memory.html الخبر الثالث: https://www.dw.com/en/japanese-scientists-make-breakthrough-in-cloning-a-woolly-mammoth/a-48063060