Martin Kamen was a giant of twentieth century science. Trained as a physical chemist, he was the co-discoverer of radioactive Carbon 14, which has transformed many areas of science as a tracer and as a way to date artifacts. He later switched to the study of metabolism and biochemistry and made important contributions to the understanding of nitrogen fixation and photosynthesis. Finally, he studied cytochromes, primarily from anoxygenic photosynthetic bacteria.

中文翻译：

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Martin David Kamen (1913–2002)：碳 14 和光合细菌中新细胞色素的发现者

马丁·卡门 (Martin Kamen) 是 20 世纪科学界的巨人。作为一名物理化学家，他是放射性碳 14 的共同发现者，它改变了许多科学领域，作为示踪剂和确定文物年代的方式。后来他转向代谢和生物化学的研究，并对固氮和光合作用的理解做出了重要贡献。最后，他研究了细胞色素，主要来自无氧光合细菌。