File:Chart of Electromagnetic Radiations.jpg

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    Description
    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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    data size

    112,395,483 byte

    height

    6,958 pixel

    width

    10,000 pixel

    media type

    image/jpeg

    checksum

    7e117eafa99854b5983dd493d12ba8c6a298a15a

    determination method or standard: SHA-1

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    Date/TimeThumbnailDimensionsUserComment
    current16:52, 20 October 2025Thumbnail for version as of 16:52, 20 October 202510,000 × 6,958 (107.19 MB)wikimediacommons>JayCubbyUploaded a work by W.M Welch Scientific Company from https://www.flickr.com/photos/llnl/9403051123/ with UploadWizard

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