TFA Dostmann Galileo Galilei 18.1019 Analogue Glass Thermometer, Liquid Thermometer, 44 cm, Measure Indoor Temperature, Easy Reading, Silver Temperature Marks, Decorative Object, 18 to 28 °C,

Liquid thermometer made according to the idea of Galileo Galilei (1564-1642). Galileo discovered that liquids change their density depending on temperature. As the temperature rises, the density of the liquid in the thermometer is reduced. The comparatively heavier balls lose buoyancy and sink. If, on the other hand, the room temperature decreases again, the lighter balls gain buoyancy and gradually rise. The weight difference of the 6 glass balls is measured (to one hundredth of a gram) exactly such that the lowest of the floating balls at the top always shows the current temperature in the range of 18 °C to 28 °C. Advantages of the TFA Dostmann Galileo Galilei liquid thermometer: Made according to the idea of Galileo Galilei. Fascinating method of temperature measurement. Decorative glass thermometer with 6 colourful balls. Easy to read the temperature marks. Measuring range 18 °C to 28 °C. Technical data: Temperature range: +18 to +28 °C. Material: Glass Assembly: for standing. Dimensions: (L) 47 (79) x (W) 47 (79) x (H) 440 mm. Weight: 707g Box contents: thermometer. The family business TFA Dostmann with headquarters in Wertheim am Main specialises in the production of high-quality weather and measurement technology. It is one of the industry leaders and has already launched over 1000 products related to weather, temperature, humidity and time measurement.