River City Clocks L89-120 Weather Station with Hygrometer And Hanging Galileo Thermometer, Cherry-Finished Frame, 17.5-Inch Tall

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Price: $73.07 $67.11   

Product Feature

• Real cherry-finished wood frame
• Includes two functional weather instruments
• Hygrometer indicates changes in humidity
• Hanging Galileo thermometer with multi-colored balls
• Two year limited warranty covering workmanship and manufacturers defects.

Product Description

This wall-mounted weather station features two instruments mounted on a cherry-finished wood frame. Instruments included a hygrometer to indicated changes in humidity and a hanging galileo thermometer with multi-colored balls. The galileo thermometer has temperature gradients of 4 � F from 64 F to 80° F and is accurate to within 4°. Galileo Thermometers are magnificent creations that make Galileo's 400 year old principle of relative density a functional reality. Each Thermometer is encased in brilliant glass with many multi-color floating balls. A gold tag that displays a temperature in Fahrenheit hangs beneath each ball. The Galileo Thermometer is the point at which art meets science. Galileo Thermometers are precisely manufactured. Each of the liquid-filled floats weighs exactly .006 grams more than the one above it. Precise measurements of the liquid filled balls ensure a stately and orderly procession of ups and downs as the temperature changes. How do I read the temperature? To tell the temperature, you read the tag on the lowest of the floating balls. This is Galileo's 400 year old principle of fluid density at work. As the temperature of the fluid in the cylinder increases, the pressure drops and the liquid becomes less dense. When the precisely measured floats reach their specific calibrated temperature they drop. As the temperature of the liquid cools, the process is reversed and the floats rise from the bottom of the cylinder. This weather station is covered by a two year limited warranty covering workmanship and manufacturers defects.

River City Clocks L89-120 Weather Station with Hygrometer And Hanging Galileo Thermometer, Cherry-Finished Frame, 17.5-Inch Tall Review

I bought one for my 8 year old nephew to get him interested in watching the weather and learning about the physics of a Galileo thermometer

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