I need help it is about a barometer.?
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A barometer is an instrument used to measure atmospheric pressure.\n\n\n\n\n\nLiquid barometers\n\nWater-based barometers\nThis concept of "decreasing pressure means bad weather" is the basis for a primitive weather prediction device called a weather glass or thunder glass. It can also be called a "storm glass" or a "Goethe thermometer" (the writer Goethe popularized it in Germany).\n\nIt consists of a glass container with a WIDE spout. The container is filled with water up to about the middle of the spout; some air is left in the main body of the container. The design is such that when the air pressure decreases, the pressure of the air pocket inside the device will push some of the water up the spout. If the air pressure is low enough, some of the water may even drip out of the spout. These devices are essentially a water-based version of the mercury barometer. The "Thunder Glass" is extremely susceptible to the ambient temperature which will alter the height of the water column in the spout.\n\n\nMercury barometers\nA standard mercury barometer has a glass column of about 30 inches (about 76 cm) in height, closed at one end, with an open mercury-filled reservoir at the base. Mercury in the tube adjusts until the weight of the mercury column balances the atmospheric force exerted on thle reservoir. High atmospheric pressure places more downward force on the reservoir, forcing mercury higher in the column. Low pressure allows the mercury to drop to a lower level in the column by lowering the downward force placed on the reservoir.\n\nThe first barometer of this type was devised by Evangelista Torricelli, a student of Galileo Galilei, in 1643. Torricelli had set out to create a perfect vacuum, and an instrument to measure air pressure. He succeeded in creating a vacuum in the top of a tube of mercury. Torricelli also noticed that the level of the fluid in the tube changed slightly each day and concluded that this was due to the changing pressure in the atmosphere. He wrote: "We live submerged at the bottom of an ocean of elementary air, which is known by incontestable experiments to have weight".\n\nThe mercury barometer's design gives rise to the expression of atmospheric pressure in inches or millibars: the pressure is quoted as the level of the mercury's height in the vertical column. 1 atmosphere is equivalent to about 29.9 inches, or 760 millimeters, of mercury. The use of this unit is still popular in the United States, although it has been disused in favor of SI or metric units in other parts of the world. Barometers of this type can usually measure atmospheric pressures in the range between 28 and 31 inches of mercury.\n\n \n\nAneroid barometers\nAnother type of barometer, the aneroid barometer, uses a small, flexible metal box called an aneroid cell. The box is tightly sealed after some of the air is removed, so that small changes in external air pressure cause the cell to expand or contract. This expansion and contraction drives a series of mechanical levers and other devices which are displayed on the face of the aneroid barometer.\n\n\nApplications\nA barometer is commonly used for weather prediction, as high air pressure in a region indicates fair weather while low pressure indicates that storms are more likely. Localized high atmospheric pressure acts as a barrier to approaching weather systems, diverting their course. Low atmospheric pressure, on the other hand, represents the path of least resistance for a weather system, making it more likely that low pressure will be associated with increased storm activities.\n\n\nCompensations\n\nTemperature\nThe density of mercury will change with temperature, so a reading must be adjusted for the temperature of the instrument. For this purpose a mercury thermometer is usually mounted on the instrument. No such compensation is required for an aneroid barometer.\n\n\nAltitude\nAs the air pressure will be reduced at a
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Contact the National Weather Service\n\nwww.weather.gov
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Have each page work on the same princable as the bi-metallic thermometer.  Try to find two materials the expand differently than eachother because of heat, or you could use humidity to expand one material more than the other. You could probably find some material that contracts (or expands) when an electrical current passes through it. place a strip of this along the top and bottom of each page. Thats all i can think of right now.\nCool question by the way.
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since its you science homework the answer your more than likely looking for is Newton meter, now its up to you to find out what you can on it
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prssure measured in athmosphere
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Zinc. \nBut your units are wrong. It should be Fahrenheit not Celsius.
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0.58 (with a horizontal bar right above the 58)
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The meter should have some literature with it.\n\nWrite to the manufacturer and ask for it.
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the pressure of the air inside the thermometer pushes it up.
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Barometric pressure is the measure of how dense the air around you is. It is measured in inches or millibars.  The reason for this type of measurement is that early barometers were constructed using a tube of mercury.  it was discovered that a tube containing mercury sitting in a pool of mercury varied with the air pressure.  Scientists noted that this device gave a higher reading at the bottom of a mountain where the air is more dense than at the top where there is less air pressure to support that column of mercury.( if you could keep going higher you would get to a place where there is no air to support your column of mercury.  That is outer space. Say you took an inflated balloon with you on your journey to outer space.  It would explode because there are air molecules inside the balloon pushing outward, and no air pressure outside the balloon to keep it in check. The same with your body.). The average reading at sea level is around 30 inches of mercury.  If you live in a place where there are mountains you can test this for yourself. Most barometers now days do not use mercury, but instead are operated using a spring. Take your barometer with you when you travel up a mountain.  As you get higher you will see the reading decrease. As you travel up or down a mountain, your ears might "pop".  This is due to the change in air pressure. Have you noticed the weatherman talking about areas of low preassure and areas of high presure? The barometric pressure is what they are talking about.  In general the higher the air pressure the less likely there will be a storm. In tornados and hurricanes air pressure is very low. This lower air pressure is what causes some people with arthritus to complain of their aches and pains and causes your headaches. \nSandy Claws
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http://www.worldometers.info/
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go to weather.com a type in ur city or town.\n                      OR\nlook at a weather chart\n                      OR\nGo outside and measure the snow with a ruler.
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Barometers measure air pressure. \n\nAt a given location a storm is generally anticipated when the barometer is falling rapidly; when the barometer is rising, fair weather may usually be expected.\n\nYou would expect the desert to have the highest reading.
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Try a histogram and use a range of temperatures.
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If you are asking how to measure temperatures this cold (practically), you would use a T thermocouple.\n\nhttp://instserv.com/rmocoupl.htm
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I think one has to recalibrate your barometer for every different location (including altitude), according to what I read on the internet and my intuition. \n\nI am working on a more quantitative analysis which I will try to complete to post here later.
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A MISSOMETER THAT DRESSES LIKE A WOMAN