PERSON@1 , LOCATION@1 , June NUMBER@1 , NUMBER@2 In NUMBER@3 , MISC@1 scientist and inventor PERSON@2 discovered that compressing and liquefying ammonia could chill air when the liquefied ammonia was allowed to evaporate .

History The 19th century MISC@1 scientist and inventor PERSON@2 discovered that compressing and liquefying ammonia could chill air when the liquefied ammonia was allowed to evaporate .
