tucec9: A billboard at the edge of Oak Ridge, TN, where US citizens secretly mined uranium for the Manhattan Project.

mirrored image from https://66.media.tumblr.com/f348097d3cdec7a8cc0704c6fa6c6ddb/tumblr_o4ajyx2oiz1ukfexro1_1280.jpg without alt text, sorry

A billboard at the edge of Oak Ridge, TN, where US citizens secretly mined uranium for the Manhattan Project.

May 16th, 2016 9:19pm