Galileo Thermometer, 28cm tall
I had always wanted a Galileo thermometer, fantasies by its working principle of changing liquid density according to temperature! But was clearly muffled by the cost of owning one - about $30-$60! It's quite a price to pay for a plaything and display ornaments right?
Yesterday, i saw this one laying right on top of Dad's work pile! Hehe... but is it working...? Depending on temperature, liquid glass bulbs in the thermometer should either rise or fall. Actual temperature was shown by the lowest of the upper floating glass bulbs - where 8 colorful bulbs graduated every 2 degree Celsius.
This morning, after a cold rainy night, i woke up and observed that the glass bulbs indicating 28 °C had risen to replace the 30 °C of last night! It's clever! It is working!
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