File:How to Open the World's Heaviest Door (8056997874).jpg

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Description For 35 years, the Energy Department has pursued an all-of-the-above energy strategy — 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 world’s 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.
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Source How to Open the World's Heaviest Door
Author ENERGY.GOV

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Public domain 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.

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This image was originally posted to Flickr by ENERGY.GOV at https://www.flickr.com/photos/37916456@N02/8056997874. It was reviewed on 12 October 2014 by FlickreviewR and was confirmed to be licensed under the terms of the United States Government Work.

12 October 2014

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current20:33, 12 October 2014Thumbnail for version as of 20:33, 12 October 2014754 × 1,024 (431 KB)Bomazi (talk | contribs)Transferred from Flickr via Flickr2commons

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