Then, in 1612, Santorre Santorio introduced a numerical graduation to Galileo’s project and put it to medicinal use. Finally, Gabriel Fahrenheit, in the year 1714, created the first mercury-based thermometer, with its scale that stated that between the freezing point of water and the boiling point, 180 degrees should pass. A few years later, Anders Celsius would propose his scale, which established that distance at 100 degrees. The first inventor of the thermometer is estimated to have been Galileo Galilei, in 1592.
It basically consisted of a glass tube with a hollow glass sphere in its upper radical, in which a liquid was introduced that, when heated, rose through the tube. At first, the material used was water, but at a point it froze. So the water was replaced by alcohol, which does not undergo this reaction. From Iberomed I hope I have clarified the various types of thermometers and that the narration about their invention has been of interest to you.
Types Of Thermometers And Their HistoryRead Time: 2 Minutes
In 1612, Santorio assigned a numerical scale to the first clinical thermometer that took the temperature of the tolerant by putting it in the mouth. It has inside icons such as timer, heating, gas, induction, electric oven and much more. High summer temperatures in degrees Celsius and Fahrenheit. Exclusive 60-day trial with access to the world’s largest digital library.
He used a mercury-filled glass sphere with a long sealed neck. Fahrenheit chose zero as the freezing temperature of water, but not pure water, but rather brackish water. This meant that boiling water was at number 212 and freezing at 32.
Types of Digital Thermometers
The «fire of life» that emanated from human bodies was invariably 35.5 (a somewhat low measurement was initially established). This discovery influenced research linking body temperature and disease. A project that was born as a curiosity of one of the greatest scientists of the human race led to an essential tool for medicine and for life expectancy.
Once you have your bag with the mercury inside correctly labeled, you have to go to a Clean Point, which will be responsible for managing this type of waste. As we have previously commented, the basis of the operation of the thermometer is that the fluids that dilate with the increase in temperature. This website uses Google+ Analytics to catalog anonymous information such as the number of visitors, location, or the most popular pages.
The Evolution Of The Thermometer Over Time
They have a disadvantage that if you do not use them well, you have the possibility of getting wrong results. Before the use of mercury, alcohol was used, and it was Galileo Galilei, who in 1610 created a thermometer made up of a glass tube that ends in a closed sphere. The open radical was immersed upside down in a mixture of alcohol with water and when the liquid was heated, it rose through the tube until it reached the sphere, depending on the temperature.
The Scientist Invented The Thermoscope, Predecessor Of The Thermometer
The toxicity of this metal led the European Union to ban its use in measuring instruments in 2007 and since April 2009 it is no longer possible to market mercury thermometers in our country. The quick response thermometer is resistant to liquids, which allows it to be immersed in water or alcohol if you want to disinfect. It has a small memory storage that shows us the last measured temperature.
Galileo: The Incredible Story of the Invention of the Thermometer
On the other hand, the ear and forehead thermometer takes the temperature of the forehead and ear, as its name suggests. It has a backlight that makes it possible to read the result, which measures it in one second. If there is a fever, a symbol appears on the screen and an alarm goes off. In general terms, it is a very accurate and fast thermometer that also collects the ambient temperature. Mercury-type thermometer, These thermometers are used to measure both body temperature and that of a different material. The mercury inside them expands and contracts with changes in temperature.
They did experiments with a column of air in a tube with one end in a container of colored water. In 1610 Galileo tried wine instead, and is thus credited with the first spirit thermometer. Vector clip art illustration with simple gradients. In this blog I explore the chemistry of our environment from a global perspective, which includes its relationship with other branches of science, technology, and even humanistic disciplines. He also made small forays into the world of college education.