The listing, Galileo Themometer has ended.
Original Galileo Thermometer . The Thermometer is filled with five spheres, each filled with a different liquid chemical ( non toxic), each one attached to a metal tag with a # representing the temperature. The chemicals inside the bulbs react differently to heat causing them to rise. The bulb floating at the lowest point signifies the current temperature. NOT ONLY IS IT A GREAT ADDITION TO ANY LIBRARY OR STUDY, IT ALSO MAKES AN EXCELLENT EDUCATIONAL GIFT FOR BIRTHDAYS, CHRISTMAS, OR JUST ANY OCCASION.