These distinctive ornamental (but functional) thermometers utilise 17th century astronomer Galileo galilei's discovery that the density of liquids varies with temperature. Carefully weighted glass globes are suspended in a liquid-filled tube, where they sedately sink or float as the surrounding air gets hotter or colder. Temperature is indicated by the engraved brass tag on the lowest floating globe. 7-Globe models are 43 cm tall. Temperature is shown in Celsius.
I bought this to replace one my grandson broke, the original belonged to my father. I was really pleased with the new one, the colours inside are bright and pleasing to look at. The delivery was extremely quick, it arrived within two days of ordering.. Mrs Turner. Harlow, GB. Thu Jun 04 2020