Public Domain Picture: How to Open the World's Heaviest Door

Views: 548 | Downloads: 1

This work, identified by PublicDomainFiles.com, is free of known copyright restrictions.

Title:

How to Open the World's Heaviest Door

Description:

For 35 years, the Energy Department has pursued an all-of-the-above energy strategy â and the critical work done at the National Labs has helped put America at the top of the global clean energy race. This photo from 1979 shows a Lawrence Livermore National Laboratory employee opening the world's heaviest hinged door, which was eight feet thick, nearly twelve feet wide, and weighed 97,000 pounds. A special bearing in the hinge allowed a single person to open or close the concrete-filled door, which was used to shield the Rotating Target Neutron Source-II (RTNS-II) -- the worldâs most intense source of continuous fusion neutrons. Scientists from around the world used it to study the properties of metals and other materials that could be used deep inside fusion power plants envisioned for the next century. | Photo courtesy of Lawrence Livermore National Laboratory.

Creator:

US Department of Energy

Source:

US Department of Energy (Flickr Photostream)

Views:

548

Downloads:

Date Added:

June 2, 2014

Download: Largest

Size: 754 x 1024
File size: 430.8 KB
File type: jpg

Free

Why is this picture in the Public Domain?

Produced by United States Government

The file available on this page is a work of the United States government. A work of the United States government, as defined by United States copyright law, is "a work prepared by an officer or employee of the U.S. government as part of that person's official duties." In general, under section 105 of the Copyright Act, such works are not entitled to domestic copyright protection under U.S. law.

Where is this picture from?

US Department of Energy (Flickr Photostream)

View more information & files

How may I use a Public Domain picture?

The file available on this page in the Public Domain. Files in the public domain have no restrictions on use and may be used for any purpose, without any conditions, commercial or not, unless such conditions are required by law.

Possible Prohibited Uses

Although a file is in the public domain, the work may still have some restrictions for use if it contains any of the following elements:

File contains an identifiable person and such person has not provided a model release.
File contains an identifiable building or structure and the owner of such building has not provided a property release.
File contains a registered corporate logo or trademark.

Files containing any of the above elements that do not also have a provided release would generally fall under editorial uses only and may not be used for commercial purposes. Users downloading files that are designated as "editorial use" assume full responsibility for their use of the file(s). Depending on your use, the use of editorial use files may require additional rights that publicdomainfiles.com or the copyright owner may or may not be able to provide. You should consult with your legal counsel to be sure your use is legal.

Download Agreement

By downloading this file, you indicate that you understand and agree to all of these terms and assume full liability for your use of the file(s) and agree to hold publicdomainfiles.com harmless should any liability arise.