Who Invented Thermometer? Types, Facts to Know

A thermometer is a temperature-measuring instrument. Galileo Galilei created the first thermometer in 1593. He observed the expansion and contraction of mercury as the temperature changed in a tube filled with mercury.

Over the ages, other scientists improved on this concept, leading to the creation of current thermometers that employ a variety of materials and ways to monitor the temperature.

About The Discovery Of Thermometers

Galileo Galilei (1564-1642) was an Italian physicist, astronomer, mathematician, and philosopher widely regarded as one of the most influential thinkers in science history.

He produced several ground-breaking discoveries and is known as the “Father of Modern Observational Astronomy.”

Galileo’s invention of the thermometer is regarded as a watershed moment in thermometry history. He was the first to utilize a liquid in a sealed glass tube to measure temperature.

The mercury in the thermometer he devised expanded and contracted in the sealed glass tube as the temperature varied.

He noted that the temperature caused the mercury level in the thermometer to rise and fall. This was the first time a liquid had been successfully employed in a device.

This was the first time anyone had correctly measured temperature using a liquid in a sealed container. Galileo’s innovation was not extensively employed then, but it laid the groundwork for current thermometry.

Other scientists, such as René Antoine Ferchault de Réaumur and Anders Celsius, expanded on his discovery and created the first generally acknowledged temperature scale, the Celsius scale.

Types Of Thermometers

Digital thermometer: Heat sensors used in digital thermometers estimate body temperature. They can be used to measure body temperature in the mouth, rectum, or armpit. Consider that armpit (axillary) temperatures are 12 to 1°F (0.6°C) colder than oral temperatures when evaluating digital thermometer readings. Rectal thermometers are 12 to 1°F (0.6°C) warmer than mouth thermometers.

Oral Thermometer:

Oral thermometers are meant to be inserted into the mouth and are often used to assess body temperature.

Rectal Thermometer:

Rectal thermometers are designed for insertion in the rectum and are often used to monitor body temperature in newborns and young children.

Forehead Thermometer:

Forehead thermometers: These thermometers monitor the temperature of the forehead using infrared technology and are often used for rapid and non-invasive temperature checks.

Ear Thermometer:

Ear thermometers employ infrared technology to monitor the temperature of the ear canal and are widely used for rapid and non-invasive temperature checks, particularly in newborns and young children.

Infrared Thermometer:

Infrared thermometers employ infrared technology to detect the temperature of an object or surface and are often used in industrial settings, medical institutions, and cooking.

Basal Thermometer:

Basal thermometers are used by women to track ovulation and are meant to measure basal body temperature, which is a woman’s temperature at rest.

Glass Thermometers:

Which employ mercury or alcohol as a heat-sensitive element, are extensively used in laboratories and industries.

Smart Thermometer:

Smart thermometers are connected to a smartphone or other device and may collect temperature data and inform the user if the temperature is abnormal.

Industrial Thermometers:

These thermometers are used in industrial environments to monitor temperatures, such as machinery, chemical reactions, and manufacturing operations.

What Is the Most Accurate Sort of Thermometer?

The ideal thermometer is one that you can use correctly and comfortably. It’s also beneficial if a reputable company makes your thermometer.

Many medical practitioners still regard rectal thermometers as the gold standard for newborns and children. However, oral and forehead readings are also quite trustworthy in these age ranges.

Remember that temperature readings fluctuate depending on how the thermometer is used. Take your time taking the measurements.

Was this article helpful?

Leave a Comment