Second, predicting timelines on such breakthroughs is difficult. Writing on humanity’s long-run future in 1927, Haldane (amongst the most skilled forecasters of his generation) thought it sensible to portray return trips from the Moon as eluding humanity until AD8,000,000. This feat was accomplished, by Apollo 11, just 42 years later.

อ่านต่อเพิ่มเติม โรงเรียนบ้านนาเหนือ

สาระสำคัญ แบคทีเรีย