Galileo Therm-44cm US tgtg-ho24-6068708 All of our jigsaw puzzles

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Galileo Therm-44cm US tgtg-ho24-6068708 All of our jigsaw puzzlesThe Galileo Thermometer is an elegant temperature reading device that every science geek needs. It is a sealed glass cylinder that contains clear liquid and glass bulbs that are all different density. As the temperature changes, the balls rise and fall, giving you a temperature reading. The temperature is read from the engraved metal discs that hang off each bulb a" if a bulb is floating in the middle, that is the current temperature, or if some are