人类正在迎接世纪之交。即将消逝的20世纪,科学技术又有了过去无法比拟的巨大发展与进步。科学上的重大发现与技术发明、创造相互交替影响与促进,使人们对客观世界的认识更深入、更丰富多采了。以“宇宙演化”这一课题为例,《科学美国人》杂志1994年10月号以“宇宙中的生命”为题的专刊,登载了詹姆士·皮博 Humans are greeting the turn of the century. In the twentieth century, science and technology have enjoyed tremendous growth and progress unmatched in the past. Major discoveries in science and technological inventions create mutual influence and promotion so that people's understanding of the objective world is deeper and enriched. Taking the issue of “The Evolution of the Universe” as an example, the issue of “The American Journal of Science” in the October 1994 issue entitled “The Life in the Universe” featured the publication of James Pibor