Sunday, August 15, 2010

Baby Thermometer – A distinct type of Galileo Thermometer



If we want to describe the term Galileo Thermometer in simple word then what can we say in context to it? Galileo Thermometer can be simply considered as a device that is being used by the people to measure the prevailing temperature (that can be both human body’s temperature and atmospheric temperature). These Galileo Thermometers have been invented a long time back, approximately at the end of the sixteenth century.

From the time of its invention it has undergone many changes. In other words it will not be wrong to say that it has seen several renovations in its manufacturing and production types. The varieties that have been tried by the several scientists were an experiment in the transformation types of the Galileo Thermometers. These very famous and useful Galileo Thermometers were invented by Galileo Galilee, a famous Greek scientist. In the initial period of invention the Galileo Thermometers were not so popular items amid the children, but as time passed by and there have been variations and modifications in the manufacturing from the Galileo Thermometers, the look and the utility of these thermometers have changed thoroughly.

The recent Galileo Thermometers are not only a tool for measuring temperature but also an item for decorating house and gifts for the kids. Now you might get surprised to read that how can we gift the Galileo Thermometers to the kids? The answer to this is that, there are special types of Galileo Thermometers which are known as baby thermometers. These are used to measure the body temperature of the babies.

Thursday, July 22, 2010

Galileo thermometer works upon phenomenon of buoyancy


The Galileo thermometers are named after a great scientist Galileo Galilee. The thermometers are designed in such a manner that they can be used to measure the air temperature. The thermometers are glass tubes which contained multi colored balls inside them. These balls are used to determine the atmospheric temperature.

These multi colored balls are tagged with the numerical digits which help to identify the present atmospheric temperature of the time when the Galileo thermometers are given a look. The density of the multi colored balls changes with the density change when there is a rise or fall in the atmospheric temperature. The multi colored balls float in the liquid that is present inside the glass tube. The liquid contained inside the can be combination of water, alcohol and colors.

The scientific concept that is used in the Galileo thermometer is the phenomenon of buoyancy. The phenomenon of buoyancy says that if a solid weight placed in a liquid is heavier than the liquid then it will sink at the bottom of the liquid and if the weight of the solid is lesser than the liquid than it will float at the top of the liquid. So we find that the balls are floating at the top of the tube that means the density of balls in the Galileo thermometer has reduced. And the atmospheric temperature is guessed to be cool. But if the balls sink at the bottom that means the air temperature is hot outside the glass tube.

Wednesday, June 30, 2010

History of Galileo thermometers

Galileo thermometers are big glass tubes which suspend a number of multi colored balls. The Galileo thermometers are very useful in measuring the atmospheric temperature. The balls that are suspended are not only multi colored but also represent the air temperature with the numbers that they are tagged with. Sister name of Galileo thermometers is Galilean thermometers.

This famous thermometer was invented by the famous scientist named Galileo Galilei. He had invented it long back and the main concept of reading the temperature and constructing the thermometers is just as same as the old thermometers. The position of these balls in the thermometers change according to rise and fall in the air temperature. The thermometer was invented in the seventeenth century. The principle that is followed in the Galileo thermometers is the scientific principle of buoyancy. The theory of buoyancy can be defined as the theory which defines the ratio of the weight that float over a liquid to the weight of the liquid on which they float. If the ratio of the object is more than the liquid then the object will sink and if the weight of the liquid is more than the object that means the object will float. The degree of temperatures that are displayed with the help of balls allows the readers to know the present air temperature. The procedure is very simple. As we know that the balls are suspended in the tube and they can also move freely in the tube and settle down if the need be. So we see that the balls have settled at the bottom that means the air temperature is hot and if we find that the balls are floating at the top that means the temperature is comparatively cool.

Thursday, May 13, 2010

Reading Galileo thermometer's temperatures


Galileo thermometers are very old invention of a device which measured the atmospheric temperature earlier. At that time surely people use to guess the atmospheric temperature or humidity. But a guess work not sufficient enough and then the famous scientist Galilei Galileo introduced this invention of his. Galileo thermometers were introduced in the seventeenth century. These thermometers follow the gravitation principal on which it works. The working concept of these Galileo thermometers is same for the old as well as for the new ones. The Galileo thermometers are decorative glass tubes filled with multi colored balls. The balls are the main object which helps to calculate the atmospheric temperature.

These balls have the numeric digits tagged with them. The atmospheric temperature was decide to be that much, how much the tags use to contain or written on them. The Galileo thermometers require special cleaning and servicing from time to time for provide an accurate temperature amount. The Galileo thermometers should be kept away from the direct sun light and heat rays. The reading of the atmospheric temperature is very easy on these Galileo thermometers. Whenever the colorful balls sink in the bottom of the glass tube it means the temperature is comparatively hot and if the balls float upwards to the brim of the tube that means the temperature cold.

Monday, May 10, 2010

Description of Galileo thermometers and its working

Galileo thermometers are very useful invention of a famous scientist named Galilei Galileo. The history of these thermometers is very old as they depict from their age of existence. Galileo thermometers were invented in the year fifteen ninety and modified in fifteen ninety three. The principle of the modern Galileo thermometers is pretty different from the principle of the first Galileo thermometer. In the historic age that is the period of sixteenth century there was no device to predict the air temperature until this kind physician named Galilei Galileo invented his very famous creation Galileo thermometer which is used in the twenty first century also. These thermometers are still carrying his name in order to respect the great scientist who invented them.

Galileo thermometers consist of sealed vertical glass tubes. These tubes contain a transparent liquid, which is usually water. The inside of the tube is filled with several colorful and bright adjusted glass bubbles. These colorful bubbles or balls float at various levels in the tube. There are few bubbles which tend to float at the top and a few sitting on the bottom. The bubble near top sinking a little, or the bubble near the bottom starting to float, or perhaps the average of those two, indicates the temperature. The bright colors of the floating bubbles are attractive and not related to the functioning of the thermometer. These bubbles are tagged with numerical digits which depicts the air temperature. The glass bubbles usually contain a liquid that is typically some combination of water, alcohol, and coloring. The temperature is assumed to be hot if the balls settle down at the bottom and the temperature is cool if the balls float in the top.

Friday, March 26, 2010

Accuracy of Air Temperature Through Galileo Thermometers

The two major points which this blog is going to highlight are “What is a Galileo thermometer?” and “How to read a Galileo thermometer?”.



As we all know that thermometer is a device which is use to check the temperature precision. And temperature does not always mean that it has to be body temperature. So the question arises what is a Galileo thermometer? In the past when the sun use to hoist up high, no assumptions could be made about the heat and temperature until Galileo Galileo, the very famous physicist invented this thermometer. And so the thermometer still bears his name. Galileo thermometers were invented to measure the air temperature. They are quite different from the other accustomed thermometers. That’s why their shapes and designs are distinct and unique. They are made up of big sealed glass tube (cylinder) with air bubbles blown upwards to the surface of the liquid filled within a glass. They are a bit hard to use. They should be kept away from the reach of moisture, sunlight, heat and air conditioner vents. And the glass cylinder should be wiped off with cloth frequently. The glass bulbs fitted inside the tube should be equally distributed in the top and the bottom.
Now how to read the Galileo thermometers?

When there is a fluctuation in degrees of temperature, the movement of the bubbles of the device is disturbed. Means the bubbles with lower density rises above and the bubbles which are of higher density gets drowned. The reading of the temperature is done with attaching a tag to the lowest floating ball of the thermometer, which indicates the current temperature. The tags on the balls actually define the weights of the balls. When the balls have settled underneath that means the tube is hot and when the balls are at the surface of the tube that means the tube is too cold. Glass Galileo thermometers are more accurate though plastic Galileo thermometers are also available.