| Barometers are weather instruments used to | | | | are not as accurate as the mercury barometers. The |
| measure air pressure, with the help of the column of | | | | mercury barometers or precision barometers have a |
| air above it. This is based on the fact that the higher | | | | column of mercury. This must be about 32 inches tall. |
| we go, the thinner is the earths atmosphere, the air | | | | The aneroid barometers use a bellows and heavy |
| gets lighter and the pressure is lower. In simple | | | | spring that expands and compresses along with air |
| terms, barometers tell you whether the pressure is | | | | pressure changes. |
| rising or falling. Therefore, a rising barometer would | | | | Digital barometers are the modern counterparts of |
| tell you that you could expect dry sunny weather | | | | the conventional barometer and are easy to read. |
| conditions, while a falling barometer indicates stormy | | | | Along with the barometer, gardeners use garden rain |
| and wet weather conditions. | | | | gauges. These make great room accessories and |
| Barometers have been used in homes for centuries. | | | | gifts. These calibrated rain gauges can be staked into |
| Today the antique barometer is a much sought after | | | | your garden and are easy to read. Rain gauges can |
| addition to enhance the look of a living room. You | | | | measure how much rain your garden is getting and |
| can use the ordinary clock face barometer in your | | | | also the amount of rain over a particular time period. |
| car to tell you the changes in altitude during | | | | Water barometers are decorative items that |
| cross-country driving. This is measured in a unit called | | | | enhance your room decor. They tell you when it is |
| hectopascals. | | | | going to rain without having to wait for the weather |
| Barometers are typically used to measure change in | | | | report. The weather glass barometer is a functional |
| air pressure in a given area. Different areas of the | | | | instrument that looks quite stylish. It comes with a |
| earth have high and low pressure systems in the | | | | brass hanger with which it can be hung up. All you |
| atmosphere and this can be read on the barometers | | | | need to do is fill the barometer with colored water to |
| face. Taken along with the wind temperature, | | | | the specified level and hang it on your wall. |
| moisture and signs of the clouds, barometers can be | | | | Another easy way to enhance your decor is to use |
| very useful to forecast the weather. | | | | outdoor clocks. You get antique porthole clock |
| The Italian mathematician Torricelli invented the | | | | barometers that can both tell you the time and |
| Barometer in 1645, when he discovered the principle | | | | measure the changes in pressure. Your outdoor clock |
| of the barometer. He used a long glass tube closed | | | | can be placed over your outdoor fireplace or on the |
| at one end, which he placed upside down in an open | | | | wall of your patio. These add a fine touch to your |
| container with liquid. The pressure of the air on the | | | | decor. Outdoor clocks come in durable weather |
| liquid inside the container made it go up the tube and | | | | resistant material so that you do not have to worry |
| the changes in the liquid level could be used to | | | | about placing them outside in any season, be it |
| measure air pressure changes. | | | | summer and winter. |
| The latest barometers are mercury barometers as | | | | Today, weather is mostly studied with the help of |
| they are found accurate. Of course, they need to be | | | | weather satellites and computers. In spite of this, |
| handled with care since they are quite expensive. | | | | however, the traditional barometer will always have a |
| The most common barometers used are the aneroid | | | | cherished place of honor. |
| barometers that have no fluid in them, although they | | | | |