User talk:Bob123456789123

Please refrain from making test edits in Wikipedia pages, such as those you made to Nuclear fission ‎, even if you intend to fix them later. Your edits do not appear to be constructive and have been reverted. If you would like to experiment again, please use the sandbox. Thank you. Materialscientist (talk) 22:11, 18 February 2013 (UTC)