Neutron Production and Absorption in Uranium in Physical Review Volume 56, Second Series, Number 3, August 1, 1939 pp. 284-286
Lancaster: American Institute of Physics, 1939. 1st Edition. FIRST EDITION IN ORIGINAL WRAPS of an important experiment in early fission research that was also led directly to Albert Einstein's famous letter to President Roosevelt urging his understanding of the potential lethality of chain fission reactions and prompting him to start..... More