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.
Plasma sound source fired in small swimming pool. From [http://www.spawar.navy.mil/sti/publications/pubs/td/3138/td3138cond.pdf] page 44, brightened. == Licensing == {{PD-USGov}}
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