It was Daniel Gabriel Fahrenheit.
Sir Edmond Halley - of the comet fame - was a British scientist who made a number inventions, one of which was the metal coil thermometer. It is still in use today in refrigerators, freezers, and ovens. See related link for more information.
it was more than one person who invented this thermometer
Who invented the thermometer?While the Greeks made simple thermometers (instruments for measuring temperature) as early as the first century B.C., Italian astronomer (a scientists specializing in the study of the stars, planets, and heavenly bodies) Galileo Galilei (1564-1642) is credited with inventing the modern thermometer. Called an air thermometer, it was a device in which a colored liquid was driven down by the expansion of air. As the air got warmer and expanded, the liquid dropped. In 1612 Italian physician Santorio Santorio (1561-1636), a friend of Galileo, adapted the device to measure the body's change in temperature due to illness. A century later, in 1714, German physicist Daniel Fahrenheit (1686-1736) invented the mercury (a metallic element) thermometer. Thermometers in use today, contain liquid mercury, which rises as it gets warmer.
It could be used to do this - it is capable of doing it. However, Mercury is poisonous and a mercury thermometer is made out of fragile glass. Thus the danger that the thermometer would break releasing mercury into the milk (which would be for a person to drink) means that a mercury thermomiter is not the temperature sensor to use in this instance.
im not sure if you mean who makes them now or who was the first person to make them but the first person was Gabriel Fahrenheit
•Galileo Galilei was the first person to invent the thermometer
Galileo Galilei is credited with creating an early version of the thermometer in the late 16th century, but the first modern thermometer was developed by Daniel Gabriel Fahrenheit in the early 18th century.
One disadvantage of a traditional mercury thermometer is the risk of accidental breakage and exposure to toxic mercury. Additionally, some types of thermometers may have limitations in terms of accuracy and reliability, especially if not calibrated regularly. Finally, physical contact with the thermometer may introduce measurement errors due to heat transfer between the person's hand and the thermometer.
Dr. Theodor Hannes Benzinger invented the first ear thermometer in 1964. The device was designed to measure a person's body temperature by detecting infrared heat waves emitted from the eardrum.
Mercury thermometer: Operates on the principle of thermal expansion of mercury to measure temperature. Digital thermometer: Uses electronic sensors to detect temperature and display the reading on a digital screen. Infrared thermometer: Measures temperature without direct contact by detecting the infrared energy emitted by an object or person.
The liquid in a Mercury thermometer is ... Mercury. Mercury is an element which is liquid from -38.83 °C to 356.73 °C, making it useful for measuring temperatures for most of the environments we encounter in person. Below that range, mercury solidifies and we would have to find another liquid to use in a thermometer or find another way to measure temperature (such as a thermocouple). Above that temperature range, mercury starts to boil (unless kept under pressure) so it's not suitable for measuring high temperatures. In theory we could still use a liquid thermometer with something that is liquid at high temperatures, but it gets rather complicated and there are easier and safer ways to measure high temperatures.
No person went on Mercury or might not ever go on Mercury because of its average temperature of 700degres Fahrenheit or around 350degres Celsius.