Fritz Haber given name Fritz
Fritz Haber (German pronunciation: [ˈfʁɪt͡s ˈhaːbɐ] (listen); 9 December 1868 – 29 January 1934) was a German chemist who received the Nobel Prize in Chemistry in 1918 for his invention of the Haber–Bosch process, a method used in industry to synthesize ammonia from nitrogen gas and hydrogen gas. This invention is important for the large-scale synthesis of fertilisers and explosives. It is estimated that one-third of annual global food production uses ammonia from the Haber–Bosch process, and that this supports nearly half of the world's population.  Haber, along with Max Born, proposed the Born–Haber cycle as a method for evaluating the lattice energy of an ionic solid.
Haber, a known German nationalist, is also considered the "father of chemical warfare" for his years of pioneering work developing and weaponising chlorine and other poisonous gases during World War I. He first proposed the use of the heavier-than-air chlorine gas as a weapon to break the trench deadlock during the Second Battle of Ypres. His work was later used, without his direct involvement, to develop Zyklon B, used for the extermination of more than 1 million Jews in gas chambers in the greater context of the Holocaust.
After the Nazi rise to power in 1933, Haber was forced to resign from his positions because he was Jewish. Already in poor health, he spent time in various countries, before Chaim Weizmann invited him to become the director of the Sieff Research Institute (now the Weizmann Institute) in Rehovot, Mandatory Palestine. He accepted the offer, but died of heart failure mid-journey in a Basel hotel on 29 January 1934, aged 65.
Haber has been called one of the most important scientists, if not the most important, in human history and possibly the greatest industrial chemist who ever lived.
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