File:Railgun usnavy 2008.jpg

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摘要

描述 Photograph taken from a high-speed video camera during a record-setting firing of an electromagnetic railgun (EMRG) at Naval Surface Warfare Center, Dahlgren, Va., on January 31, 2008, firing a 3.2 kg projectile at 10.64MJ (megajoules) with a muzzle velocity of 2520 meters per second. The Office of Naval Research's EMRG program is part of the Department of the Navy's Science and Technology investments, focused on developing new technologies to support Navy and Marine Corps war fighting needs. This photograph is a frame taken from a high-speed video camera. U.S. Navy Photograph (Released)
日期 Taken on 2008年1月31號
來源

This image was released by the United States Navy with the ID 080131-N-0000X-001 (next).
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

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作者 U.S. Navy
許可
(重用呢個檔案)		 Public domain

協議

Public domain
This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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成立日

31 1 2008

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image/jpeg

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現時2014年2月16號 (日) 22:01響2014年2月16號 (日) 22:01嘅縮圖版本2,091 × 1,509（1.62 MB）Cropbotupload cropped version, operated by User:Andy king50. Summary: cropped
2008年2月2號 (六) 03:45響2008年2月2號 (六) 03:45嘅縮圖版本2,100 × 1,575（1.48 MB）Erzengel{{Information |Description=Photograph taken from a high-speed video camera during a record-setting firing of an electromagnetic railgun (EMRG) at Naval Surface Warfare Center, Dahlgren, Va., on January 31, 2008. |Source=http://www.navy.mil/view_single.asp

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