What Is A Galileo Thermometer?
A Galileo thermometer or sometimes being referred to as a Galilean thermometer is a thermometer that was invented by Galileo Galilei who was a famous Italian physicist. So, what is a Galileo thermometer? A Galileo thermometer is a thermometer that is made of a sealed glass cylinder and has a clear liquid together with a series of objects whereby the densities of these objects are designed to sink in sequence as the liquid is warmed or when the liquid is cooled. This thermometer by Galileo has a very unique design and nowadays Galileo thermometers are mostly used for decorative purposes.
The history of Galileo thermometer goes back to the 1600’s when this glass Galileo thermometer was created and based on a thermoscope invented by Galileo Galilei. This Galilei thermometer as it was known during the 1600s is actually made up of a sealed glass tube that is filled with water and a few floating bubbles. These floating bubbles are actually glass spheres that are filled with a colored liquid mixture which may contain alcohol or simply water with food coloring. What is the main characteristic of the modern Galileo thermometer? How do a Galileo thermometer works? A Galileo liquid thermometer, as the name suggest, has a few weights suspended inside the liquid of this thermometer by Galileo. These weights are then attached to sealed glass bulbs which has colored liquid for an attractive effect. As the temperature of the liquid changes, you will notice that the density of the liquid will become different too. Since these bulbs can move freely, they will move until they reach a position where their density is either equal to that of the surrounding liquid or where they are brought to a halt by other bulbs inside the liquid. A temperature scale is then formed in the Galileo thermometer if the bulbs differ in density by a very small amount and are arranged such that the least dense bulb is at the top and most dense bulb is at the bottom.
How do you read the temperature in a Galileo thermometer? The temperature from a Galileo thermometer is usually read from an engraved metal disc contained on each bulb. There will be gaps separating the top bulbs from the bottom bulbs. The temperature recorded would be between the tag readings on either side of the gap. If a bulb is free-floating in the gap, then its tag reading would be closest to the ambient temperature. For a Galileo thermometer to be accurate, the weights have to be manufactured to a tolerance of less than 1/1000 of a gram. The principle of buoyancy plays a very crucial role in Galileo thermometers. Buoyancy will decide whether an object floats or sinks in a liquid of the thermometer by Galileo. Whether an object rises or falls in a particular liquid is dependant on the object's density to the density of the liquid in which it is placed. Galileo Galilei found out that the density of a liquid is a function of its temperature which is the basic understanding to how the Galileo thermometer works. The small glass bulbs in the Galileo thermometer are partly filled with a different colored liquid and their effective densities are adjusted by means of the metal tags hanging from beneath them. The easiest way to understand how Galileo thermometer works is to know that when the temperature of the air outside the thermometer changes, the temperature of the water that surrounds the small glass bulbs will also change. When the temperature of the water changes, the water may expands or contracts, thereby changing the density of the water. So, at any given density, some of the small glass bulbs will float and other small glass bulbs will sink. The small glass bulb that sinks the most will tell us the approximate current temperature. If you are a fan of Galileo Galilei, you will be happy to know that two fingers and a tooth removed from Galileo Galilei's corpse in a Florentine basilica in the 18th century have recently been found and will be put on display in an Italian museum. Galileo Galilei passed away in 1642 and was condemned by the Vatican for saying the earth revolved around the sun but in the early 1990s, Pope John Paul II rehabilitated Galileo Galilei, saying the church had made a mistake. Although the Galileo thermometer is no longer frequently used to measure temperature, there are many types of thermometers by Galileo that we can buy to decorate our home or office. Some of the famous Galileo thermometers that are sold online include the 12" Barometer/Galileo Thermometer Combo which is made up of seven multi colored spheres with gold plated temperature tags and has a temperature range of 62°F to 86°F in 4° increments, 12" Glass Galileo Thermometer which has a five multi colored spheres with gold plated temperature tags and a temperature range of 64°F to 80°F, 12" Numeric Galileo Thermometer, 12" Silver Galileo Thermometer which can clearly display the temperature on stylish silver spheres, 13" Hanging Glass Galileo Thermometer, 15" Black Lavaleo Galileo Thermometer that has seven temperature spheres together with a black base and cap with clear temperature spheres and comes with white LED lights, 17" Glass Galileo Thermometer which has ten multi colored spheres with gold plated temperature tags, 17" Hanging Outdoor Galileo Thermometer and the 24" Glass Galileo Thermometer with eleven multi colored spheres with gold plated temperature tags and temperature range of 62°F to 82°F. This glass Galileo thermometers will surely make one of the best Christmas presents to give to your friends this Christmas.
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The history of Galileo thermometer goes back to the 1600’s when this glass Galileo thermometer was created and based on a thermoscope invented by Galileo Galilei. This Galilei thermometer as it was known during the 1600s is actually made up of a sealed glass tube that is filled with water and a few floating bubbles. These floating bubbles are actually glass spheres that are filled with a colored liquid mixture which may contain alcohol or simply water with food coloring. What is the main characteristic of the modern Galileo thermometer? How do a Galileo thermometer works? A Galileo liquid thermometer, as the name suggest, has a few weights suspended inside the liquid of this thermometer by Galileo. These weights are then attached to sealed glass bulbs which has colored liquid for an attractive effect. As the temperature of the liquid changes, you will notice that the density of the liquid will become different too. Since these bulbs can move freely, they will move until they reach a position where their density is either equal to that of the surrounding liquid or where they are brought to a halt by other bulbs inside the liquid. A temperature scale is then formed in the Galileo thermometer if the bulbs differ in density by a very small amount and are arranged such that the least dense bulb is at the top and most dense bulb is at the bottom.
How do you read the temperature in a Galileo thermometer? The temperature from a Galileo thermometer is usually read from an engraved metal disc contained on each bulb. There will be gaps separating the top bulbs from the bottom bulbs. The temperature recorded would be between the tag readings on either side of the gap. If a bulb is free-floating in the gap, then its tag reading would be closest to the ambient temperature. For a Galileo thermometer to be accurate, the weights have to be manufactured to a tolerance of less than 1/1000 of a gram. The principle of buoyancy plays a very crucial role in Galileo thermometers. Buoyancy will decide whether an object floats or sinks in a liquid of the thermometer by Galileo. Whether an object rises or falls in a particular liquid is dependant on the object's density to the density of the liquid in which it is placed. Galileo Galilei found out that the density of a liquid is a function of its temperature which is the basic understanding to how the Galileo thermometer works. The small glass bulbs in the Galileo thermometer are partly filled with a different colored liquid and their effective densities are adjusted by means of the metal tags hanging from beneath them. The easiest way to understand how Galileo thermometer works is to know that when the temperature of the air outside the thermometer changes, the temperature of the water that surrounds the small glass bulbs will also change. When the temperature of the water changes, the water may expands or contracts, thereby changing the density of the water. So, at any given density, some of the small glass bulbs will float and other small glass bulbs will sink. The small glass bulb that sinks the most will tell us the approximate current temperature. If you are a fan of Galileo Galilei, you will be happy to know that two fingers and a tooth removed from Galileo Galilei's corpse in a Florentine basilica in the 18th century have recently been found and will be put on display in an Italian museum. Galileo Galilei passed away in 1642 and was condemned by the Vatican for saying the earth revolved around the sun but in the early 1990s, Pope John Paul II rehabilitated Galileo Galilei, saying the church had made a mistake. Although the Galileo thermometer is no longer frequently used to measure temperature, there are many types of thermometers by Galileo that we can buy to decorate our home or office. Some of the famous Galileo thermometers that are sold online include the 12" Barometer/Galileo Thermometer Combo which is made up of seven multi colored spheres with gold plated temperature tags and has a temperature range of 62°F to 86°F in 4° increments, 12" Glass Galileo Thermometer which has a five multi colored spheres with gold plated temperature tags and a temperature range of 64°F to 80°F, 12" Numeric Galileo Thermometer, 12" Silver Galileo Thermometer which can clearly display the temperature on stylish silver spheres, 13" Hanging Glass Galileo Thermometer, 15" Black Lavaleo Galileo Thermometer that has seven temperature spheres together with a black base and cap with clear temperature spheres and comes with white LED lights, 17" Glass Galileo Thermometer which has ten multi colored spheres with gold plated temperature tags, 17" Hanging Outdoor Galileo Thermometer and the 24" Glass Galileo Thermometer with eleven multi colored spheres with gold plated temperature tags and temperature range of 62°F to 82°F. This glass Galileo thermometers will surely make one of the best Christmas presents to give to your friends this Christmas.
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posted at 04:20:33 on 11/28/09
by webmaster -
Category: Cooking Thermometer
