新闻
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China

来自外星的智慧生命 会是变形金刚那样吗

2017-08-06 15:02:50   中国青年网

以此类推,宇宙中可能存在与人类在本质上完全不同,或者说以硅取代碳构成的硅基生物。然而,到目前为止,人类还没有在自然界或天文观测中发现哪怕最简单的硅烷等硅有机物。

不过,这样的现实并不妨碍各国科幻作家进行“思想实验”,用纸笔乃至影视作品,探讨硅基生命可能的样貌。

美国著名科幻作家、科普作家伊萨克·阿西莫夫,曾经写过一篇另类的科普文章,题为《并非我们所知的:论生命的化学形式》。

他在这篇文章中指出,如果硅基生命存在,那么它们很可能会生活在非常炎热的环境下。这是因为,一颗像太阳系中的水星那样炎热的行星,一定富含硅和氧,因为这是岩石的主要成分。

硅与碳、氢、氧可以结合成被称为“硅酮”的物质,也就是有机硅氧化物的聚合物。硅酮有着很强的稳定性,或许有可能成为生命的基础。

中国著名科幻作家王晋康也对硅基生命进行了颇为传神的刻画。在《水星播种》里,一位重度残疾的人类富豪倾尽全力资助一项对硅基生命(硅锡钠生命)的研究,并且将它们“放生”到极为炎热的水星,任其自然进化。富豪自己也随着飞船抵达水星,以便在这些硅基生命进化出文明的时候,成为他们眼中的神。

在王晋康的另一篇科幻小说《沙漠蚯蚓》里,一种人为设计的硅基生命可以吞食沙粒并产出电能,从而将沙漠转化为能源基地。但这些看似简单的硅基生命,在数量达到一定程度之后,进化出了群体智慧,并且在多年之后基本占据了整个地球,成为人类文明的掘墓者。

而在现实生活中,2016年冬天的一项实验,或许走出了创造硅基生命的第一步。美国加州理工学院的一组研究人员,通过对细菌蛋白质进行基因突变“培育”,使细菌拥有了合成硅-碳键或者说创造出有机硅的能力。这种由生物进行的合成,比传统的化学合成更为高效,也让人们意识到,地球上的碳基生命,完全有可能将硅元素吸纳到作为生命基石的碳基分子之中。这些独特的细菌还会揭示怎样的生命奥秘?让我们拭目以待。

知识就是力量供稿

上一页3/3下一页
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China

相关阅读

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China
分享到:
0 0
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China

美图推荐

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China

为您推荐

加载更多>>
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170806/31043700_3.html
Server: cms-8-251
Date: 2024/07/03 00:36:44

Powered by China
China