File:Chart of Electromagnetic Radiations.jpg

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English: If you're into scientific antiques, you have to examine the details in this 1944 poster from the W.M Welch Scientific Company: "Chart of Electromagnetic Radiations." It was found tucked away in the back of an unused office years ago, but now hangs framed in a high-traffic hallway populated by Lawrence Livermore engineers.
Date
Source https://www.flickr.com/photos/llnl/9403051123/
Author W.M Welch Scientific Company

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This work is in the public domain in the United States because it was published in the United States between 1931 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art.
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Chart of Electromagnetic Radiations

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current09:52, 20 October 2025Thumbnail for version as of 09:52, 20 October 202510,000 × 6,958 (107.19 MB)imagescommonswiki>JayCubbyUploaded a work by W.M Welch Scientific Company from https://www.flickr.com/photos/llnl/9403051123/ with UploadWizard

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