Galileo Thermometer - Heebie Jeebies novelty was discovered just a couple

was discovered just a couple of weeks after I was

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Perfect for history buffs and naval enthusiasts

Galileo Thermometer - Heebie Jeebies novelty was discovered just a coupleThe 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 if a bulb is floating in the middle, that is the current temperature, or if some are at