The Chinese people can never forget that a group of outstanding scientists and construction workers at the beginning of the founding of the People's Republic of China, for the development of nuclear bombs in the motherland, or forgo the excellent living and scientific research treatment overseas and in the eastern regions, leave their elderly parents, wives and children, and rush to the desolate grassland of Haibei, Qinghai, without hesitation. On the basis of self-reliance, the first atomic bomb and hydrogen bomb were successfully developed.