Enlarge / This is likely one of 664 uranium cubes from the failed nuclear reactor that German scientists tried to build in Haigerloch during World War II. (credit: John T. Consoli/University of Maryland) For decades, the Pacific Northwest National Laboratory (PNNL) has been home to an unusual artifact from World War II: a small cube […]
Enlarge / In 1953, the eminent physicist and H-bomb advocate took an ill-fated overnight train from Philadelphia to Washington, DC, that would indirectly lead to the Robert Oppenheimer security hearing. (credit: Michail_Petrov-96/iStock/Getty Images) In the popular science world, physicist John Wheeler is probably best known for popularizing the term “black hole,” although his research spanned […]