What is the air thermometer?
Air Thermometer is a device that measures the temperature of the indoor or outdoor atmosphere. The most common type consists of a long tube that contains mercury or color alcohol, although there are other types such as spring and digital thermometers. When the atmospheric temperature rises, it causes the material to expand inside the air thermometer. Conversely, when the air cools down, the material is downloaded and traveling back down. Thermomers use temperature scales, either Fahrenheit, Celsius or Kelvin, to ensure heat measurement in degrees. In general, the idea of air thermometer is based on the fact that liquids and gases are expanding when they are heated and cooling. The first air thermometers used the same basic mechanics as many tdne tools used: a glass tube filled at the end of mercury or colored alcohol that rises the tube as it warms them. The first thermometers contained water, but later versions switched to alcohol or mercury because their freezing points are lower.
The thermometer tube usually has a scale printed that provides temperature measurement, and the liquid inside rises to a certain point on this scale depending on how hot it is. In the United States, the Fahrenheit scale is most commonly used, which starts at a freezer point of 32 degrees. The Celsius scale is used in Europe and in most parts of the world outside the United States and begins with a zero level as a freezing point. Kelvin's scale is the third type of measurement that is based on the theoretical concept of absolute zero, a point at which the molecules cease to move completely and cannot be cooler. It is strrrimals used in scientific applications.
6 As soon as the air is heated, the spring expands, causing the indicator to move higher. The spring thermometer may not be as accurate as the one that uses liquid. The digital thermometer contains the heat sensitive material and displays the temperature measurement rather on the electronthe screen than on the printed scale. Digital thermometers can often work faster than other types.