Birthdays, July 27

Today is the birthday of Friedrich Dorn, born in 1848, he was the first person to discover that a radioactive substance radon was emitted from radium. He called it emanation, it was renamed radon by an international body of scientists.

Today is also the birthday of Hans Fisher, born in 1881, he received the Nobel Prize in 1930 for his synthesis of bilirubin and haemin, he also investigated bile pigments, cholorophyll and pyrrole.

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