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Answered 2013-09-30 20:37:57



The thermometer contain air or nitrogen above the liquid.


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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 mercury filled glass tube used to measure air temperature is called a thermometer. Air pressure is measured by a barometer.

Because the pressure of air may be greater than the pressure of the ascending mercury.

-- Bring thermometer into room. -- Wave it around in the air of the room for a minute or two. -- Do not hold the thermometer in your hand or breathe on it. -- Wait a while for the room temperature to get through the thermometer glass. -- Look through the glass at the sliver of liquid inside the thermometer. Find the end of the liquid, and see what number is marked on the glass at the same level. That number is your room temperature.

A thermometer used to measure air temperature uses a glass tube filled with a liquid either alcohol or mercury. When the temperature increases the particles of liquid expand, filling the glass tub. Thermometers that are used to measure you body temperature uses infrared sensors.

The first thermometer was a tube filled with water and air.

All devices for measuring temperature are called thermometers. This includes those which use mercury and measure the temperature of the air.

the most basic tool is your skin. it is the most easiest tool to use for measuring air temperature as you can feel whether it is hot, warm, cool or freezing. the thermometer is a very common and small tool for measuring air temperature too and it consists of a tube like glass but is sealed and murcury is stored inside. the maximum-minimum thermometer or the hygrometer is another instrument.

Yes, above the mercury or the other liquid.

Temperatures are measured by instruments called thermometers.The instrument usually used to measure air temperature is the maximum-minimum thermometer. It consists of a U shaped tube with bulbs at each end and mercury at the bottom. Air heats or cools the bulbs causing the air inside to expand or contract, therefore pushing or pulling the mercury upwards or downwards.There are 3 types of thermometer: minimum thermometer, maximum thermometer,and the "Six's thermometer" -- these record the temperatures over a period of says in my book that a thermometer measures air temperature

It is a insulator. The glass does not have free electrons to flow as current, and the air in the tube is also an insulator.

Lower at the inside (convex) than the 'free' mercury at the outside (concave) , because of interaction forces with glass (side) and air (on top), surface tension of mercury and the high density.

Yes! First the air is pumped out, ten the tube is sealed by melting the glass access tube, then a little magnesium wire is set alight by magnetic induction. This burns any are remaining and makes a silver patch on the inside. If air gets in, even a tiny amount, the tube will malfunction.

The instrument usually used to measure air temperature is the maximum minimum thermometer. It consists of a U shaped tube with bulbs at each end and mercury at the bottom. Air heats or cools the bulbs causing the air inside to expand or contract, therefore pushing or pulling the mercury upwards or downwards.

Typical Liquid in Glass Thermometers (air and body temperature)Molecules moving around the thermometer impart energy to the liquid inside, increasing its own energy, or heat. The heat causes the expansion of the liquid, which rises up the tube.The molecules in contact with the thermometer can also absorb energy from the molecules of the liquid, which will cause the liquid to contract, and move down in the tube. (The glass tube has little friction, and the liquid is highly cohesive, so it will "pool" in the reservoir at the bottom when it cools.) The balance between energy absorbed and energy imparted will be achieved when the thermometer liquid is at the same temperature as the measured material, as indicated on the marked graduated tube.Metal Coil Thermometers (thermostats)As with liquid thermometers, the metal winding expands or contracts in response to the energy absorbed from the air or liquid around it. This expansion pushes the end of the metal indicator back and forth in the dial face.

The air-tube in a grasshopper helps it with respiration. The air-tubes on the grasshopper are called tracheae and are located inside their bodies.

It means that the glass envelope has leaked and is no longer a vacuum. Air inside has oxidized the getter. They generally no longer work in this condition.

Condensation of the cool air on the hot glass.

A sound is produced in a wind instrument when a column of air vibrates inside a tube.A sound is produced when a column of air vibrates inside a tube.

Glass blowing is a technique that requires heating of glass and shaping by pushing air into the glass. Other options are to heat the glass and manipulate it with an assortment of tools.

The outside pane of glass shields the inside against heat and cold, as the inside pane is a barrier from the inside. The air gap is used as a buffer between the two.

To get rid of the air that has permeated through the glass tube.

It will implode, because there is no air pressure inside of the tube, yet there is 14.7 PSI of air on the outside.

The mercury will expand and rise up the thermometer tube until it reaches the temperature of the air around it. When it stops expanding, it is the same temperature as the air, and therefore gives an accurate reading.

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