10-colorful-balls Galileo Thermometer

1.Glass structure
2.10-colorful balls
3.18~28C

4.64~84 F

5.Height:620mm

6.Diameter:50mm

7.Made In China,

History:Italy 1564-1642

            Based on Galileo Galilei's discovery that a liquid's buoyancy decreases as its temperature increases.

            Use in science classes to demonstrate Galileo 's princple or as an  interesting and attractive way to  accurately measure indoor

 ambient temperature anywhere.