To enable you to read the level the fluid has reached
The traditional mercury thermometer has the mercury in a narrow glass tube with the readings/markings etched into the glass so it is neither analogue nor digital. I thought it was analogue.
thermometer
what do they use for the liquid in glass ball thermometer
A so-called "glass" thermometer has a small bore-hole in the center of the glass that has some liquid in it. It's the activity of the liquid in the narrow hole that makes the thermometer a thermometer.
So you can read it more easily.
To enable you to read the level the fluid has reached
The traditional mercury thermometer has the mercury in a narrow glass tube with the readings/markings etched into the glass so it is neither analogue nor digital. I thought it was analogue.
thermometer
what do they use for the liquid in glass ball thermometer
thermometer
Mercury is poisonous.
you look at the sticks on the sidething
A so-called "glass" thermometer has a small bore-hole in the center of the glass that has some liquid in it. It's the activity of the liquid in the narrow hole that makes the thermometer a thermometer.
The colour makes the alcohol easier to see inside the thin glass thermometer.
The capillary tube of the thermometer ( in case of a mecury thermometer).
Temperature major through a thermometer, one is contact type thermometer another one non contact type.Non contact type thermometer known as laser thermometer. With non contact type thermometer or leaser thermometer you will read out temperature from a particular long distance without contact the particular point which temperature want to know.Contact type thermometers are glass type thermometers, analogue or digital read out type. Digital thermometer and analogue dial read out type thermometer have a sensor and that sensors must be to touch hot or cold point to read the temperature.Best use of contact type thermometer is uses full in a closed area. To know grill temperature of a slip Air Condition best use nonContact thermometer to read exact temperature.