The Stevenson screen, invented in the 1860s by Thomas Stevenson, revolutionized temperature measurement by allowing air circulation while protecting thermometers from weather influences.
During a recent heat wave, the thermometers in Stevenson screens recorded high temperatures, but differences emerged compared to modern systems, especially during calm nights.
Despite its limitations in calm and sunny conditions noted since 1884, the Stevenson screen has provided accurate temperature readings for over 150 years.
Modern thermometer screens have begun to incorporate electric fans to enhance ventilation, addressing some of the historical limitations of the traditional Stevenson screen.
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