Infrared Rays

"Infrared Rays" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.
MeSH information
That portion of the electromagnetic spectrum usually sensed as heat. Infrared wavelengths are longer than those of visible light, extending into the microwave frequencies. They are used therapeutically as heat, and also to warm food in restaurants.

This graph shows the total number of publications written about "Infrared Rays" by people in this website by year, and whether "Infrared Rays" was a major or minor topic of these publications.
Bar chart showing 1986 publications over 28 distinct years, with a maximum of 234 publications in 2018
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