A barometer measures air pressure. A Mercury one does so by taking a tube full of mercury which is inverted into a dish of mercury. The height of mercury remaining in the tube is a measure of the air pressure.
Mercury is within the thermometer's glass tube. There is a bulb which holds the majority of the mercury. Mercury reacts to temperature and rises withing the tube. A scale is used to determine the approxiamate temperature. Mercury thermometers are widley used in meteorology, but are rare in medical use. Some countries have legally banned them.
Mercury thermometers are based on the fact that materials (in this case, the liquid mercury) expand when heated.
Mercury thermometers are based on the fact that materials (in this case, the liquid mercury) expand when heated.
Mercury thermometers are based on the fact that materials (in this case, the liquid mercury) expand when heated.
Mercury thermometers are based on the fact that materials (in this case, the liquid mercury) expand when heated.
The liquid in a mercury thermometer is ... Mercury.
Mercury is an element which is liquid from -38.83 °C to 356.73 °C, making it useful for measuring temperatures for most of the environments we encounter in person. Below that range, mercury solidifies and we would have to find another liquid to use in a thermometer or find another way to measure temperature (such as a thermocouple). Above that temperature range, mercury starts to boil (unless kept under pressure) so it's not suitable for measuring high temperatures. In theory we could still use a liquid thermometer with something that is liquid at high temperatures, but it gets rather complicated and there are easier and safer ways to measure high temperatures.
Mercury has an average temperature of 167C.
A mercury thermometer measures the temperature by the amount that the mercury expands with a high temperature and contracts with low temperatures.
Mercury thermometers are based on the fact that materials (in this case, the liquid mercury) expand when heated.
air pressure
Many do, but not all. Most barometers that people would have in their homes are aneroid barometers, which don't contain any mercury.
Barometers can use any liquid. A dense liquid that makes for a short column at room temperature, is mercury.
The aneroid barometer is more durable and compact, and much easier to read. The only particular advantage of a mercury barometer is that it's a direct measurement -- there's no calibration involved. If you can measure the height of the column above the pool and you know the density of mercury, you have the pressure.
Barometers, Anemometer, Thermometer
Thetools scientist use are Barometers, Anemometer's thermometers Richter Scale
There are two types of barometers, Mercury barometers and then Aenroid barometers.
anaeriod barometer and a mercury barometer
mercury barometers and aneroid barometers both measure air pressure.
Mercury and aneroid barometers.
Many do, but not all. Most barometers that people would have in their homes are aneroid barometers, which don't contain any mercury.
Mercury
They are more portable and can be used for airplane equipment
Historical, both thermometers and barometers have used mercury.
mercury
barometers with mercury measure air pressure. when the air pressure is high the mercury rises
It consists of a thin tube containing mercury
Mercury is used in thermometers barometers and flourescent lightbulbs.