GALILEO  GALILEI  (1564 - 1642)

Galileo Galilei was an important Italian scientist who founded modern physics with its reliance on experience and experiment.

Among countless discoveries of natural laws, he succeeded in developing a thermometer based on the laws of physics  which states that the specific gravity of liquids changes as they expand at different temperatures.  This principal has been used in the Galileo Thermometer.

As the temperature rises, the liquid expands.  Its specific gravity decreases and the spheres sink.  The current temperature is indicated by the lowest floating sphere in the upper part of the cylinder.

The manufacturing company N.W.P. purchases the glass Galileo Thermometers from is extremely complex and the Galileos are done mostly by hand.  They calibrate each ball to achieve an accuracy of 1/2 a degree F.  They differ in weight by only two thousandths of a gram!  The temperature is indicated on stainless steel medallions and the liquid within is environmentally safe, biodegradable and ozone friendly.

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