How do people measure temperature or humidity in an era without temperature and humidity sensors?
In the modern age with advanced technology, many industries are inseparable from temperature and humidity sensors . It can help us monitor the temperature and humidity around us, ensure our production efficiency, and protect the storage safety of our items. However, how did the ancients measure temperature and humidity? Woolen cloth? The twenty-four solar terms are the result of the ancients' accumulated farming experience. When the first thunder in spring begins, the hibernating animals wake up and start stinging. As the third of the twenty-four solar terms, it marks the beginning of mid-spring. , also marks the rise in temperature. In the industry, experienced workers will look at the temperature through the color of the flame. During the smelting process, the dark red fire is about 600 ℃ now, the dark red fire is about 700 ℃, and the orange-red represents about 1000 ℃. Orange is around 1100°C, kumquat is around 1200°C, golden yellow is around 1300°C, white gold is around 1400°C...