This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Federal Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
Acest fișier a fost identificat ca fiind liber de orice restricții cunoscute privind legea drepturilor de autor, inclusiv toate drepturile conexe sau înrudite.

https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse

The original description page was on en.wikipedia (file log). All following user names refer to en.wikipedia.

• 21:30, 10 April 2011 (UTC) Nergaal 283×179 (33 KB) ({{Non-free use rationale |Article = Berkelium |Description = A photomicrograph of the first isolated bulk (1.7 micrograms) sample of berkelium |Source = {{cite book|title=Advances in Inorganic Chemistry and Radiochemistry|vol)