Galileo hitamælir - 44 cm

Based on the principle that the density of a liquid changes in proportion to its temperature. The temperature is displayed by means of small aluminium tags hanging from 7 small bulbs. The difference in the weight of the bulbs is less than 2/1,000 g, which yields a precision of 1 °C. When the temperature rises, the bulbs descend slowly; as the temperature falls, the bulbs rise up. The temperature is read from the tag on the lowermost floating bulb. Height: 44 cm. Measurement range: 18 to 24 °C

Framleiðandi: Frederiksen