Galileo
Galileo Galilei did not invent the thermometer. The first modern thermometer, using mercury in a glass tube, was invented by Daniel Gabriel Fahrenheit in the early 18th century, around 1714.
The first liquid used in a thermometer was likely alcohol, specifically ethanol. Alcohol has a low freezing point and a wide range of expansion when heated, making it suitable for use in early thermometers.
An air thermometer has a bubble of liquid inside the tube and when the air inside of the tube heats up or cools down, the air takes up either more or less space inside of the tube, causing the bubble of liquid to either move upwards or downwards, indicating the temperature.
A typical thermometer consists of a glass tube filled with a liquid (usually mercury or alcohol) that expands and contracts with changes in temperature. The tube is usually marked with a scale for reading the temperature, and there may be a bulb at the bottom to sense the temperature.
A liquid column thermometer is a device used to measure temperature by utilizing the expansion or contraction of a liquid within a sealed glass tube. As the temperature changes, the liquid—commonly mercury or colored alcohol—expands or contracts, causing it to rise or fall in the column of the tube. The temperature is then read against a calibrated scale marked on the tube. This type of thermometer is widely used due to its simplicity and accuracy.
No, Galileo Galilei did not invent the thermometer. The first modern thermometer was invented by Santorio Santorio in the early 17th century, using a tube filled with a liquid that expanded and contracted with temperature changes. Galileo did contribute to the development of thermometers by discovering the principle of buoyancy that makes them work.
Galileo Galilei did not invent the thermometer. The first modern thermometer, using mercury in a glass tube, was invented by Daniel Gabriel Fahrenheit in the early 18th century, around 1714.
Water - Galileo Galilei invented a rudimentary water thermometer in 1593 which, for the first time, allowed temperature variations to be measured
John Flamsteed invented the first test tube.
Galileo Galilei was the first to invent the thermometer formerly known as thermoscope in 1592.
The first outdoor thermometer was invented by Galileo Galilei in the early 17th century. He used a glass tube filled with a liquid, typically alcohol, that would expand and contract with temperature changes, indicating the temperature on a scale.
The cathode ray tube was invented in 1897 by Ferdinand Braun.
He did not actually invent the thermometer, which would have shown a scale of temperatures. He invented the "thermoscope" -- a device that showed increase or decrease of temperature using the expansion of a liquid in a tube.
mercury
The first liquid used in a thermometer was likely alcohol, specifically ethanol. Alcohol has a low freezing point and a wide range of expansion when heated, making it suitable for use in early thermometers.
A mercury-in-glass thermometer, invented by German physicist Daniel Gabriel Fahrenheit, is a thermometer consisting of mercury in a glass tube. Calibrated marks on the tube allow the temperature to be read by the length of the mercury within the tube, which varies according to the heat given to it. To increase the sensitivity, there is usually a bulb of mercury at the end of the thermometer which contains most of the mercury; expansion and contraction of this volume of mercury is then amplified in the much narrower bore of the tube. The space above the mercury may be filled with nitrogen or it may be less than atmospheric pressure, which is normally known as a vacuum.
a thermometer--