博文
- 一个纯粹的科学家：Hermann Muller
- 热度 7
- (https://en.wikipedia.org/wiki/Hermann_Joseph_Muller) As science is more and more subject to grave misuse as well as to use for human benefit it has also become the scientist's responsibility to become aware of the social relations and applications of his subject, and to exer ...
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电话(telephone)，光话(photophone)，光声成像(photoacoustic）
- 热度 9
- 2016 年是电话这一人类历史上最重要的发明之一问世 140 周年。 这是因为 1876 年 3 月 10 日，亚历山大 ∙ 格雷海姆 ∙ 贝尔（ AlexanderGraham Bell ， 1847-1922 ）验证了他发明的电话。据说贝尔对着电话筒同另一端的搭档说第一句话是，“沃森先生，来这里，我想见你（ Mr. Watson, come here, I want t ...
