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Thursday, October 4, 2007

How is fog formed?

Water vapor is always around us in the atmosphere, in varying amounts according to pressure and temperature. When the temperature drops suddenly, these water vapor particles condense on the dust specks in the air, and this produces the haze we call ‘fog’.
‘Smog’ is a combination of smoke and fog. And is a particular menace in the industrial cities of America, but surprisingly it is Athens in Greece which suffers badly from smog. Smog eats away at the classical Greek building there, such as the Parthenon, at an amazing rate, causing serious damage.

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Wednesday, October 3, 2007

Why is the word love used in tennis?


Long ago, no score was indicated on French tennis scorecards by an egg-shaped zero. This was known as “I’oeuf”, the French word for egg, and the English-speaking players used the same word, but in this case it should like love, and has been called love ever since.

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Tuesday, October 2, 2007

Who Invented tennis?

The indoor game of ‘real’ tennis was played in the middle ages. During the 19th century it over flowed on to the lwn where players made up their own rules. In 1874 Major Walter Wing field invented rules for lawn tennis. Even by 1890, however, ‘real’ tennis rackets were still being used.

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Monday, October 1, 2007

What are the Olympic Games?


The Olympic Games is the biggest sporting event in the world. It takes place every four years, each time in a different country. Amateur sportsmen and women from over 100 nations take part. There are about 20 sports, of which the most important are track and field athletics.

The idea for these competitive events came from Ancient Greece. And the spirit of the games has always been one of true sportsmanship; that is, fair competition, without the aid of cheating in any form. However, competition is so fierce these days that it is hard for competitors to live up to these ideals.

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Inventions, science, useful topics for students.