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Otherwise known as a Maximum - Minimum thermometer.
Records the max and min temperature, at the position of a couple of small metal riders.
A u-tube, each arm a few inches long. The lower part of the U contains Mercury, and there will be a small metal bit (a rider) above the mercury in each arm. One of the arms is otherwise filled with alcohol, and the other arm will have a vacuum or alcohol under low pressure.
As the alcohol arm expands, it will depress the mercury column in that arm, and thus elevate the mercury column in the other. The riders are pushed up their respective tubes by the mercury as appropriate. When the temperature changes and the mercury withdraws, the metal bits will remain in position, (by a weak magnet) thus recording the max (or min) temperature in that column.
There is usually a small push button, which moves the weak magnet away from the columns, thus allowing the metal riders to fall to the top of the mercury columns.
The temperature read at both ends of the mercury column (bottom of the riders) should be the same.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoSix's thermometer also called a Maximum minimum thermometer.
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How do you measure temp of room without a thermometer I only have a digital oral thermometer?
It is not possible to measure the room temperature with a thermometer. A digital oral thermometer will not work to measure the room temperature. It is meant to measure human temperature, not room temperature. You will need a room thermometer to measure the room temperature.
Why would a mercury thermometer not work below -39 degrees Celsius?
A mercury thermometer wouldn't work -39 degrees Celsius because, it would have to be at a certain temperature to get the right calculations and it has to be a certain temperature
What instrument measures hot or cold air?
a thermometer
What is the most suitable thermometer for measuring boiling point of water?
- a thermometer with mercury - a thermometer with thermoresistance
What instrument is used to measure temperature of cup of tea?
thermometer
What is a probe thermometer?
this is a thermometer that can work twice as much as a normal thermometer or a thermometer that can check the temperature of two things at the same time
What is a dual probe thermometer?
this is a thermometer that can work twice as much as a normal thermometer or a thermometer that can check the temperature of two things at the same time
How does love thermometer work?
by heat
How does a LOVE thermometer work?
by heat
How does an aquarium thermometer work?
It depends on what kind you have.
Will a thermometer work in the horziontal position?
Yes, it will.
How a laboratory thermometer work?
It works when the thermometer gains heat from the surroundings. When the thermometer gains heat from the surroundings, gradually Mercury expands and it points the accurate measurement of temperature.
How does a thermometor work?
i don't know how a thermometer works
How do you tell how hot or cold something is?
use a thermometer.We can feel how hot or cold something is. However, sometimes things are just too hot or cold for us to feel safely. At other times we need to know exactly how hot or cold something is. When we need to measure temperature correctly we need to use an instrument called a thermometer. This measures temperature in degrees Celsius [sometimes called centigrade] or degrees Fahrenheit. There are different types of thermometers for different situations. A medical thermometer, for example, needs to be very accurate. It measures in fractions of degrees. When we are ill, even tiny changes in temperature are important. Some thermometers use a liquid that moves up a very fine glass tube. Most room thermometers, and outdoor thermometers are like this. The liquid is either mercury [ which is poisonous] or coloured alcohol. As liquids get warmer they expand [get bigger], and move up the tube. Water expands too, but not as much as alcohol and mercury. Thermometers that might be used by small children are not made of glass. They use a digital display which lights up the temperature. Inside the displays are chemicals that change colour according to the temperature.
What thermometer would be used to collect data over a twenty four hour period of time?
You can use the recording thermometer or the mercury thermometer, either one of those will work.
How do you measure temp of room without a thermometer I only have a digital oral thermometer?
It is not possible to measure the room temperature with a thermometer. A digital oral thermometer will not work to measure the room temperature. It is meant to measure human temperature, not room temperature. You will need a room thermometer to measure the room temperature.
Can you ues a non contact infrared IR thermometer work on a grill?
You cannot use a non contact infrared IR thermometer on a grill.
