Fritz Haber, a brilliant German chemist, changed the world with his groundbreaking method to synthesize ammonia, allowing billions to be fed through artificial fertilizers. His work in agriculture earned him a Nobel Prize and revolutionized global food production. Yet Haber's genius had a terrifying double edge. During World War I, he applied his chemical expertise to develop poison gas for warfare, directly causing thousands of deaths. The contrast between his life-saving discoveries and deadly