"17"" Galileo Thermometer" "17"" Galileo Thermometer Glass Galileo Thermometers" 
"Educational and Attractive
Now On Sale! Galileo Thermometers are designed to add character
and charm to any home or office environment and make
an attractive gift. Everyone can appreciate the simple beauty of
colorful orbs floating in a glass cylinder. Developed by Galileo
Galilei (1564-1642) this thermometer is based on the law of
physics which states: ""The specific gravity of liquids change as
they expand at different temperatures."" As the temperature rises, the
liquid expands. Its specific gravity decreases and the spheres sink.
The current temperature is indicated by the lowest floating glass
sphere in cylinder. Each hand-blown ball differs in weight by
only two thousandths of a gram Calibrated to achieve an
accuracy of 1/2 degree F The temperature is shown on
gold-plated indicator medallions. The liquid within is environmentally safe, biodegradable
and ozone friendly Highly educational and entertaining A fantastic gift
for the person who is hard to buy for Becomes
a conversational piece."
Price: $39.50 |
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