Closeup of a smartwatch on a man's wrist https://www.rawpixel.com/image/2324732/premium-photo-image-accessory-alone-applicationView licenseAutomatic recording thermometer in cooperative creamery at Ruthven, Iowa. The latest scientific instruments are used here by… https://www.rawpixel.com/image/12145613/image-art-vintage-technologyFree Image from public domain license