Thứ Tư, 29 tháng 11, 2017

NPR News: 75 Years Ago, Scientists Conducted An Unprecedented Nuclear Experiment

75 Years Ago, Scientists Conducted An Unprecedented Nuclear Experiment
On Dec. 2, 1942, a group of scientists in Chicago created the first controlled, self-sustained nuclear chain reaction, which would prove essential to developing an atomic bomb a few years later.

Đọc thêm tại NPR
at November 29, 2017 at 03:15AM
Health & Science

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