Samuel Goudsmit, discoverer of electron spin and head of the Alsos mission (=groves in French = Groves in English, which directs the Manhattan Project in the USA) questions Frederic Joliot about the progress of the Nazi nuclear program
Samuel Goudsmit, discoverer of electron spin and head of the Alsos mission (=groves in French = Groves in English, which directs the Manhattan Project in the USA) questions Frederic Joliot about the progress of the Nazi nuclear program