🌐EnglishEnglishDeutschFrançaisItalianoفارسی中文日本語EntityQ5095738· pop 8· linked from 173 articlesChicago Pile 3first heavy water reactor in the world, going critical on 15 May 1944ConnectionsChicagoEntitynuclear powerEntityCategoriesArgonne National LaboratoryManhattan Project sitesNuclear history of the United StatesNuclear research reactors