When Suffolk Construction first installed thermal cameras on their job site in Hollywood, Los Angeles, all the workers wanted to see what their faces looked like in yellow, red, purple, and blue. These are the colors that indicate warmth, coolness, and potentially a fever.
from Pocket https://www.fastcompany.com/90503493/thermal-cameras-are-terrible-at-exposing-covid-19-companies-are-buying-them-anyway
via TV Aerials Leeds
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