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OCR: Oparin's and Haldane's ideas inspired the famous Miller-Urey experiment which ir 1953 began the era of experimental prebiotic chemistry. Harold C Urey of the University of Chicago and Stanley L Miller, graduate student in Urey's laboratory, wondered about the kinds of reactions that occurred when the earth was still enveloped in reducing atmosphere In a self contained apparatus, Miller created such an 'atmospl here it consisted of methane ammonia water and hydrogen above an "ocean" of water. Then he subjected the gases to "lightning" in the form ofa continuous electrical discharge. Aftera few days, he analyzed the contents of the mock ocean Miller found that as much as 10 percent of the carbon in the system was converted to relatively small number of identifiable organic compounds and up t ...