Table of Contents
- 1 Who invented alcohol thermometer?
- 2 Where was the thermometer invented?
- 3 When was the first thermometer invented?
- 4 Did Galileo invent the thermometer?
- 5 Why is mercury no longer used in thermometer?
- 6 What is the red liquid in a thermometer?
- 7 When did Daniel Gabriel Fahrenheit invent the thermometer?
- 8 When did Fahrenheit invent the mercury thermometer?
Who invented alcohol thermometer?
Daniel Gabriel Fahrenheit
René Antoine Ferchault de Réaumur
Alcohol thermometer/Inventors
Other sources, including the Encyclopædia Britannica, credit German scientist Daniel Gabriel Fahrenheit with inventing the alcohol thermometer in 1709. Fahrenheit was a skilled glassblower and his alcohol thermometer was the world’s first reliable thermometer.
Where was the thermometer invented?
The first recorded thermometer was produced by the Italian Santorio Santorio (1561-1636) who was one of a group of Venetian scientists working at the end of the 16th century. As with many inventions, the thermometer came about through the work of many scientists and was improved upon by many others.
Who invented the first digital thermometer?
The digital thermometer had a patent taken out for it in 1973 by F. Mueller, B. Martin, J. Chandler, R.
Why is alcohol thermometer better than mercury?
Unlike mercury in the mercury thermometer, alcohol is less toxic and evaporates quickly. But the maximum temperature measured by an alcohol thermometer is 78.5°C; hence this thermometer is suitable for measuring lower temperatures.
When was the first thermometer invented?
One of the first thermoscopes was developed by Italian inventor, Galeleo Galilei in 1593.It used water as the liquid and glass bulbs inside an open tube. The glass bulbs rose and fell with the changes in temperature.
Did Galileo invent the thermometer?
The great Italian scientist Galileo may have been the first person to use a telescope to observe the heavens, helping spark the scientific revolution of the 16th century, but Galileo definitely did not invent the famous thermometer and captivating curiosity that bears his name.
Who invented the mercury and alcohol thermometers?
Daniel Fahrenheit
The more modern thermometer was invented in 1709 by Daniel Fahrenheit. It was an enclosed glass tube that had a numerical scale, called the Fahrenheit scale. The early version of this thermometer contained alcohol and in 1714 Fahrenheit developed a mercury thermometer using the same scale.
When was digital thermometer invented?
A typical inexpensive electronic ear thermometer for home use has a displayed resolution of 0.1 °C, but a stated accuracy within ±0.2 °C (±0.35 °F) when new. The first electronic clinical thermometer, invented in 1954, used a flexible probe that contained a Carboloy thermistor.
Why is mercury no longer used in thermometer?
The reason: Mercury released into the environment from a broken thermometer is highly poisonous. So government and state agencies have mounted campaigns to end the use of thermometers that contain the liquid metal. Federal and state authorities have lobbied since 2002 for bans on medical mercury thermometers.
What is the red liquid in a thermometer?
alcohol
Mercury is a silver-white to gray substance. If your thermometer is filled with a red liquid, your thermometer contains red dyed alcohol or mineral spirits and not mercury.
Who invented forehead thermometer?
Francesco Pompei of the Exergen Corporation introduced the world’s first temporal artery thermometer, a non-invasive temperature sensor which scans the forehead in about two seconds and provides a medically accurate body temperature.
Who was the first person to invent the alcohol thermometer?
History. Other sources, including the Encyclopædia Britannica, credit German scientist Daniel Gabriel Fahrenheit with inventing the alcohol thermometer in 1709. Fahrenheit was a skilled glassblower and his alcohol thermometer was the world’s first reliable thermometer.
When did Daniel Gabriel Fahrenheit invent the thermometer?
Daniel Gabriel Fahrenheit was the German physicist who invented the alcohol thermometer in 1709 and the mercury thermometer in 1714. In 1724, he introduced the standard temperature scale that bears his name—Fahrenheit scale—that was used to record changes in temperature in an accurate fashion.
When did Fahrenheit invent the mercury thermometer?
The early version of this thermometer contained alcohol and in 1714 Fahrenheit developed a mercury thermometer using the same scale. He assigned the freezing point of water at 32 degrees, the boiling point of water as 212 degrees and the normal body temperature as 98.6 degrees.
What kind of liquid is used in an alcohol thermometer?
The position of the meniscus shows the temperature against an inscribed scale. The liquid used can be pure ethanol, toluene, kerosene or isoamyl acetate, depending on manufacturer and working temperature range. Since these are transparent, the liquid is made more visible by the addition of a red or blue dye.