Ambient Weather WS-YG901 Galileo Thermometer and Glass Globe

Ambient Weather WS-YG901 Galileo Thermometer and Glass Globe Fluid Barometer
- The Galileo thermometer consists of a sealed glass tube that is filled with water 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 water surrounding the bubbles. As the temperature of the water 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 concept that 'decreasing atmospheric pressure predicts stormy weather' was postulated by Lucien Vidie -- and it's 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.
Overall height: 11.4 inches tall
Barometer height: 5.9 inches
Number of glass balls: 5
Glass Galileo thermometer range: 64ÂºF â€“ 80ÂºF
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 = deteriorating weather
Attractive wood base
Country USA
Brand Ambient Weather
Manufacturer Ambient Weather
Binding Misc.
ItemPartNumber WS-YG901
Model WS-YG901
Warranty 1 year
Color clear
UPCs 857450002487
EANs 0857450002487
ReleaseDate 0000-00-00

Country	USA
Brand	Ambient Weather
Manufacturer	Ambient Weather
Binding	Misc.
ItemPartNumber	WS-YG901
Model	WS-YG901
Warranty	1 year
Color	clear
UPCs	857450002487
EANs	0857450002487
ReleaseDate	0000-00-00

Ambient Weather WS-YG901 Galileo Thermometer and Glass Globe Fluid Barometer

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