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  • Ambient Weather WS-YG501 Galileo Thermometer, Hygrometer and Glass Fluid Barometer
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Ambient Weather WS-YG501 Galileo Thermometer, Hygrometer and Glass Fluid Barometer


List Price: $69.99
Price: $21.99 + $9.45 shipping
You Save: $48.00 (69%)
In Stock.
Ships from and sold by Ambient Weather.
  • The Galileo thermometer consists of a sealed glass tube that is filled with liquid and several floating bubbles. The bubbles are glass spheres filled with a colored liquid mixture.
  • Attached to each bubble is a little metal tag that indicates a temperature. These metal tags are calibrated counterweights.
  • The bubbles are calibrated by adding a certain amount of fluid to them so that they have the exact same density. So, after the weighted tags are attached to the bubbles, each differs very slightly in density (the ratio of mass to volume)
  • As the temperature of the air outside the thermometer changes, so does the temperature of the liquid surrounding the bubbles. As the temperature of the liquid changes, it either expands or contracts, thereby changing its density.
  • A narrow spout connects to the body below the liquid level and rises above the liquid level, where it is open to the atmosphere.
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Frequently Bought Together

Ambient Weather WS-YG501 Galileo Thermometer, Hygrometer and Glass Fluid Barometer + Westminster Hand Boilers (Colors May Vary) + The Famous Drinking Bird
Price for all three: $35.14

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Product Details

  • Product Dimensions: 8 x 6 x 13 inches
  • Shipping Weight: 2 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B004GF7C6A
  • Item model number: WS-YG501
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (60 customer reviews)
  • Amazon Best Sellers Rank: #30,376 in Home & Kitchen (See Top 100 in Home & Kitchen)
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Product Description

Overall height: 11.4 inches tall
Barometer height: 5.9 inches
Number of glass balls: 5
Glass Galileo thermometer range: 64ºF to 80ºF
Temperature is determined by lowest floating bulb
Glass barometer globe with frosted world map
Low level of liquid in spout = high pressure and fair weather
High level of liquid in the spout = bad weather
Attractive wood base and wood framed hygrometer
Ambient Weather 1 year warranty
Add food coloring to customize the water barometer color (not included). Distilled water is recommended but not required (not included, water must be added to the barometer).

From the Manufacturer

Features:

  • Overall height: 11.4 inches tall
  • Barometer height: 5.9 inches
  • Number of glass balls: 5
  • Glass Galileo thermometer range: 64ºF – 80ºF
  • Temperature is determined by lowest floating bulb
  • Glass barometer globe with frosted world map
  • Low level of liquid in spout = high pressure and fair weather
  • High level of liquid in the spout = bad weather
  • Attractive wood base and wood framed hygrometer
The Hygrometer

The wood framed hygrometer includes a comfort zone indication and a glass face dial.

Ambient Weather WS-YG501 Galileo Thermometer, Hygrometer and Glass Fluid Barometer

The Galileo Thermometer

The Galileo thermometer consists of a sealed glass tube that is filled with fluid (paraffin oil) and several floating bubbles. The bubbles are glass spheres filled with a colored liquid mixture.

Attached to each bubble is a little metal tag that indicates a temperature. These metal tags are calibrated counterweights. The weight of each tag is slightly different from the others. Since the bubbles are all hand-blown glass, they aren't exactly the same size and shape.

The bubbles are calibrated by adding a certain amount of fluid to them so that they have the exact same density. So, after the weighted tags are attached to the bubbles, each differs very slightly in density (the ratio of mass to volume) from the other bubbles, and the density of all of them is very close to the density of the surrounding water.

As the temperature of the air outside the thermometer changes, so does the temperature of the fluid surrounding the bubbles. As the temperature of the fluid changes, it either expands or contracts, thereby changing its density. So, at any given density, some of the bubbles will float and others will sink. The bubble that sinks the most indicates the approximate current temperature.

The Fluid Barometer

The concept that 'decreasing atmospheric pressure predicts stormy weather' was postulated by Lucien Vidie, and it is the basis for a weather prediction device called a storm glass or liquid barometer. It consists of a glass container with a sealed body, half filled with water.

A narrow spout connects to the body below the water level and rises above the water level, where it is open to the atmosphere. When the air pressure is lower than it was at the time the body was sealed, the water level in the spout will rise above the water level in the body and when the air pressure is higher, the water level in the spout will drop below the water level in the body.

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Customer Reviews

I got my husband this for his birthday and he loves it, and so do I!
Laura Hobbs
The wooden stand does not seem to be milled properly and the glass globe does not fit in the base, at least in the one I received.
Silence Dogood
This is a great office gift for her or him and looks very nice though the wood is not the highest quality.
rkr

Most Helpful Customer Reviews

20 of 20 people found the following review helpful By Tessa Bailey Rexroat on April 25, 2011
Verified Purchase
My boyfriend is a weather nerd, so for his birthday I figured I'd let him start to set up his very own weather station. In our bedroom. Which admittedly doesn't necessarily reflect the conditions outside the closed windows.

Anyhoo, I was a little worried that the quality would be a little sketchy, but it's actually a lovely little collection of tools, well beyond my expectations. It works like a charm (we've been checking it against official weather reports) and is shockingly sensitive - at least a few times a day someone calls out, "The temperature's changing!" or "Pressure is up!"

Overall, highly recommended to physics/weather nerds everywhere.
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20 of 23 people found the following review helpful By Silence Dogood on February 25, 2012
Verified Purchase
This was a really nice product. For the first half hour I possessed it anyway. After finally getting the globe filled with colored water (a task in and of itself with the hose and syringe provided), when what I thought as "gently" placing the globe into the recessed area of the wooden stand, the base of the globe shattered. The wooden stand does not seem to be milled properly and the glass globe does not fit in the base, at least in the one I received. I would recommend buying one, but proceeding with caution when placing the glass barometer in the base and be prepared to exercise patience when filling the barometer with liquid.
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5 of 5 people found the following review helpful By BJ on July 11, 2013
Verified Purchase
I have one of these myself and purchased another for a friend. They are beautiful to look at, but also provide me with great weather information. I was actually looking for a water barometer and this is perfect. It doesn't matter to me what the pressure, I only want to know if it is high, low, rising or falling. I have found that it is a very accurate predictor of my arthritis pain. Now that I have it, if I am experiencing exceptionally bad pain and the pressure is low, I can dismiss it as being pressure-related.
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5 of 5 people found the following review helpful By Tanya L. Rogers on June 13, 2011
Verified Purchase
The product was quite affordable, yet it was of excellent quality. It is ideal for a desktop. The only downside is the temperature increment, which is 4 degrees, but that was expected with a smaller and more affordable product. Great value.
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5 of 5 people found the following review helpful By Jay Simpson on December 26, 2011
Verified Purchase
Obviously, this unit is not for the pro. It is what it is: a fun gadget. Everything performed as expected and was a crowd pleaser. Strong recommend.
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5 of 6 people found the following review helpful By S. ROBERT ANDALORA on April 12, 2013
Verified Purchase
When I received the first one the thermometer didn’t fit into the wooden base. The opening in the base was too small. I returned the item and was sent a second one with no problem from Amazon. When I opened the second one and began the assembly the thermometer was very tight and didn’t fit properly again. When I tried to put the thermometer in the base it broke and glass went everywhere. That was the last attempted for me. I would not recommend this product.
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4 of 5 people found the following review helpful By lindastewart on November 1, 2011
Verified Purchase
I have always wanted one of the
Galileo thermometers for myself. I bought one for my son years ago and just never got me one until I saw this weather station. My husband has always wanted the barometer and I have to keep up with the humidity in my house so this station meets all our wants and needs. I simply love and it makes a wonderful conversation piece.
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3 of 4 people found the following review helpful By Fer on September 20, 2012
Verified Purchase
I consider this instruments as an ornament mostly and they look really nice for me. Considering other reviews, assembly might be a little tricky but not much. It would be advisable to start checking how the thermometer and barometer fit into the recessed areas of the wooden base, in my case they fitted just fine. Filling the barometer should be done according with the booklet instructions, the only thing it doesn't say is how much water to put in, I would advice to avoid spills, to put it short and then considering how water level evolves add some more.
All in all this is not for accurate measurements but works very fine and I like it very much.
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Most Recent Customer Reviews