First lab nuclear chain reaction achieved 75 years ago Nov 29, 2017 14:47:56 GMT Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Pincho Paxton on Nov 29, 2017 14:47:56 GMT Link...First controlled nuclear chain reaction achieved 75 years agoPincho says...It's actually something else... not taking risks posting what it is.Pincho Paxton