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Antique Poster Offers 1940s Look at Electromagnetic Radiation

News, Research

Image: Lawrence Livermore National Laboratory

For those interested in scientific antiques, scientists at Lawrence Livermore National Laboratory (LLNL) recently released a detailed, super-high resolution retro electromagnetic radiation infographic online.

Designed by W.M. Welch Scientific Company in 1944, the “Chart of Electromagnetic Radiations” depicts the entire electromagnetic spectrum and covers the properties, uses, and effects of each type of electromagnetic waves; it was discovered in the back of an unused office and now hangs framed in a hallway at the LLNL.

A 10,000 x 6,958 pixel 107MB JPG file of this image is available on LLNL’s Flickr page here.

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Interference Technology

Established in 1970, Interference Technology helps EMI/EMC engineers find solutions to their various testing, design, application and regulatory issues by publishing articles, news and other practical content. We help suppliers in these areas to find the right customers for their components, materials, test equipment and services through a wide range of marketing services, including lead generation, branding, market research and events. The publication is available in various printed and electronic media formats, with readers in over 60 countries. We also publish issues in local languages in China, Japan and Europe.

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