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21 inch SilverThermometer

Galileo Galilei never could have imagined the "thermoscope" he invented four centuries would be such a popular and intriguing gift today. Appealing both visually and intellectually, these great gifts are a beautiful combination of precision and art.

Made of blown glass, the colorful glass bubbles with counterweight tags react to temperature and density changes in the cylinder by floating or sinking. In a Galileo Thermometer, the lowest floating sphere in the upper cylinder tells the correct temperature. Each ball is calibrated down to a single degree, and two glass balls differ in weight by only 6/100 gram. Because of it's accuracy and exclusiveness we are convinced you will treasure this instrument. For long life, please do not display in continuous sunshine.

The picture just for your reference, you can design any shape for making.
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