Archivo: Np sphere

Description: This nickel-clad neptunium sphere was used to experimentally determine the critical mass of Np at Los Alamos National Lab.
Title: Np sphere
Credit: http://pubs.acs.org/cen/80th/neptunium.html
Author: Los Alamos National Lab.
Permission: Public domainPublic domainfalsefalse This image is a work of a United States Department of Energy (or predecessor organization) employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. Please note that national laboratories operate under varying licences and some are not free. Check the site policies of any national lab before crediting it with this tag. English ∙ français ∙ Nederlands ∙ Tiếng Việt ∙ македонски ∙ русский ∙ українська ∙ മലയാളം ∙ 日本語 ∙ 中文（简体） ∙ 中文（繁體） ∙ العربية ∙ +/−
Usage Terms: Public domain
License: Public domain
Attribution Required?: No