For centuries weather observing tools were the various human senses…

For centuries weather observing tools were the various human senses — the eye, the nose, the ear. The technology of weather observation (1) be developedin the last seven centuries. The rain gauge, barometer, anemometer, psychrometer and ther mometer (2) be all invented in the years between 1400 and 1700. These instruments (3) be improved through the years, but even today they are the basic observing tools of weather observers all over the world. However, things have changed. With the de velopment of the telegraph in the 1840's, then radio and tele phone, new observing systems such as instrumented balloons, radar and satellites have appeared. They are now part of the range of tools that (4) be used by weather watchers. Thus (таким образом) , the quality (качество) of the data, the possi bilities (возможности) of meteorologists to exchange informa tion from the weather stations in different regions and the rate (скорость) of this exchange have experienced a huge leap (ска чок) , especially[1] with the appearance of computers. The data collected by different weather observers, (5) be brought to pro cessing ['prooscsig] computers. The processed ['praosest] infor mation in the form of forecasts, maps, and even three-dimen sional models[2] (6) be sent back to weather information users via[3] television, radio, and the Internet. But today nobody can say how weather (7) be predicted in the future, or how accurate ly it (8) be predicted.