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Member Products:17-inch Galileo Thermometer

17-inch Galileo Thermometer

$55.00 Sale Price:   $19.99

Price: $55.00 Sale Price:   $19.99

Item# :1075151

Qty: Available, ready to ship.





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Art meets science in this colorful glass thermometer. In 1593, Italian physicist Galileo invented a thermometer based on the principles of relative density. Individually calibrated weights containing a mixture of ethanol and dye float in a sealed tube with de-aromatic oil where they rise and fall with the temperature and the resulting changes in liquid density.


Not available for shipment outside of the 48 contiguous United States. Expedited shipping is not available for these items. This item cannot ship to a PO/APO/FPO Box.


Displays temperatures in Fahrenheit in 2° increments from 68° to 80°. Accurate to within 2°. 17"H.

In the 2nd century B.C., Greek scholar Archimedes discovered the law that states any object in a fluid displaces its own weight of fluid. He went a step further when he described the principle of buoyancy—that if an object is more dense than an equal volume of water, it sinks; if it's less dense, it floats. A simplified way of understanding density in this example is that it's the relative "heaviness" of objects of the same volume—a marshmallow is less dense than a marble of the same size and shape.


Almost 2,000 years later, Italian scientist Galileo discovered that a liquid's density is affected by changes in temperature. As temperatures rise, a liquid's density decreases. This means that objects that float in room temperature water would sink as the water is heated. He applied his discovery to create what is now known as a Galileo thermometer.


In a Galileo thermometer, sealed glass bubbles filled with a mixture of ethanol and dye have weights attached that are marked with different degrees Fahrenheit. The bubbles are suspended in a tube of de-aromatic oil. The weights give the bubbles different densities from each other and from the liquid in the tube.


When the atmospheric temperature rises, the density of liquid in the tube decreases, which changes the relative density of the glass bubbles. So, as the temperature increases, the liquid's density decreases, which means more bubbles will sink because they are now more dense than the surrounding liquid. At the highest temperatures, the lightest (least dense) bubble will finally sink. When temperatures drop, the opposite happens and more bubbles rise.


To read a Galileo thermometer, look at the lowest hanging bubble in the middle of the tube—the one that is not entirely sunk, nor entirely floating at the top. This bubble is in equilibrium with the surrounding liquid, and its tag will tell the current temperature.


REVIEW SNAPSHOT®

by PowerReviews
17-inch Galileo Thermometer
 
4.0

(based on 25 reviews)

Ratings Distribution

  • 5 Stars

     

    (14)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (3)

79%

of respondents would recommend this to a friend.

Pros

No Pros

Cons

No Cons

Best Uses

No Best Uses
    • Was this a gift?:
    • Yes (7), No (4)

Most Liked Positive Review

 

I would give this product as a gift!

This is a beautiful piece of art that also tells the temp. You just have to put it somewhere where it will not get knocked over and our of the reach of kids. I...Read complete review

This is a beautiful piece of art that also tells the temp. You just have to put it somewhere where it will not get knocked over and our of the reach of kids. I love the product and would purchase another one.

VS

Most Liked Negative Review

 

Temperature range too narrow

When the snow falls, the wind blows, and the cabin chills. Room temperature is a big item. Should we turn up the fireplace? Grab an extra blanket? Hot tea, anyone? Having...Read complete review

When the snow falls, the wind blows, and the cabin chills. Room temperature is a big item. Should we turn up the fireplace? Grab an extra blanket? Hot tea, anyone? Having a temperature range of 68 degrees to warmer temps does not do it for dwelling on a mountain. Want a range of 55 degrees to 75 degrees, please. Thermostats are for wusses.

Reviewed by 25 customers

Displaying reviews 1-10

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5.0

Sooo cool!

By Belle

from Hawaii

Verified Buyer

Pros

  • Ng Great With Replacement

Cons

  • First Shipment Got Broken

Best Uses

    Comments about 17-inch Galileo Thermometer:

    Grandchildren really like this.

    • Was this a gift?:
    • Yes
     
    5.0

    Cool gift

    By SueL

    from SC

    Verified Buyer

    Pros

    • Fun
    • Unique

    Cons

      Best Uses

      • Office

      Comments about 17-inch Galileo Thermometer:

      Makes a cool gift. Comes as shown. Nothing to put together. Easy to learn.

      • Was this a gift?:
      • Yes
       
      5.0

      Great looking and very accurate

      By Sue

      from Chicago suburbs

      Pros

      • Very Educational

      Cons

        Best Uses

          Comments about 17-inch Galileo Thermometer:

          We use this to find temperature changes in each room of the house, the kids love it!

          • Was this a gift?:
          • Yes

          (1 of 1 customers found this review helpful)

           
          2.0

          Pretty but doesn't work

          By Judy

          from Baton Rouge, Louisiana

          Comments about 17-inch Galileo Thermometer:

          Was excited to find this item in your catalogue as it was the perfect gift for my brother. Though pretty to look at, it doesn't work. It won't indicate a temperature below 76 when exposed to temperatures known to be below 70... The 74 degree float stays at the bottom no matter what... very disappointing!!!

          • Was this a gift?:
          • Yes

          (3 of 3 customers found this review helpful)

           
          5.0

          I would give this product as a gift!

          By Pat

          from Atherton, CA

          Verified Buyer

          Pros

          • BEAUTIFUL
          • Fun to watch
          • Tells The Temp

          Cons

          • NOT VERY STABLE
          • will break if dropped

          Best Uses

          • Tell Temp
          • very pretty

          Comments about 17-inch Galileo Thermometer:

          This is a beautiful piece of art that also tells the temp. You just have to put it somewhere where it will not get knocked over and our of the reach of kids. I love the product and would purchase another one.

          • Was this a gift?:
          • No

          (1 of 1 customers found this review helpful)

           
          4.0

          Stylish,great bookshelf piece!

          By Majorprm

          from U.S.

          Verified Buyer

          Comments about 17-inch Galileo Thermometer:

          Buy for decorating more than function.

          • Was this a gift?:
          • Yes

          (1 of 2 customers found this review helpful)

           
          1.0

          Does not work correctly

          By Bozo Bob

          from Daytona beach , Fl

          Verified Reviewer

          Pros

            Cons

              Best Uses

              • Got It To Replacea
              • Got It To Replace One Tha

              Comments about 17-inch Galileo Thermometer:

              not accurate. temperature is 3 degrees colder than all other instruments in the home. I purchased this to replace one that was broken by accident. The first one was great.( it was a gift from my son )

              • Was this a gift?:
              • No

              (2 of 2 customers found this review helpful)

               
              3.0

              Temperature range too narrow

              By skier Bob

              from Whitefish, Montana @ 4613 feet

              Verified Buyer

              Pros

              • Attractive
              • Quick shipping

              Cons

              • Comfort Zone 60-75 Degree
              • Does Not Show Low Temps
              • House Kept 60 In Winter
              • Lowest Temp 68 Degrees
              • Night Temps Go To 55 Degr

              Best Uses

                Comments about 17-inch Galileo Thermometer:

                When the snow falls, the wind blows, and the cabin chills. Room temperature is a big item. Should we turn up the fireplace? Grab an extra blanket? Hot tea, anyone? Having a temperature range of 68 degrees to warmer temps does not do it for dwelling on a mountain. Want a range of 55 degrees to 75 degrees, please. Thermostats are for wusses.

                • Was this a gift?:
                • Yes

                (3 of 3 customers found this review helpful)

                 
                4.0

                Decrative and useful

                By Byrddog

                from Texas

                Verified Buyer

                Pros

                • Pleasant In Appearance

                Cons

                  Best Uses

                    Comments about 17-inch Galileo Thermometer:

                    Its basically "Eye Candy". Have seen them before and always wanted one. Like it very much.

                    • Was this a gift?:
                    • No

                    (3 of 3 customers found this review helpful)

                     
                    4.0

                    A piece of galileo in your home!

                    By Fullmoonwalker

                    from New Rochelle, NY

                    Verified Buyer

                    Comments about 17-inch Galileo Thermometer:

                    Useful within the home but not outside due to limited temperature range.
                    Still, a satisfying, marvelous inventive way of gauging the temperature

                    • Was this a gift?:
                    • Yes

                    Displaying reviews 1-10

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