Galileo Thermometer Large 44cm

Edu-21 Verified independent store

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This large and beautiful sealed glass cylinder contains 10 colourful, carefully weighted balls of hand blown glass. As the ambient temperature changes, the paraffin within the ther mometer changes density, affecting which baubles float and which sink. Accurate for a temperature range between 18 degrees Celsius and 28 degrees Celsius. Measures 44cm high. 400-year-old design by Galileo! Show more