Free Essays & Term Papers

On Tuesday, hijackers crashed two passenger jets into the World Trade Center in New York City, toppling the 110-story twin towers and killing all aboard the jets and an unknown number on the ground and in the building.
In a similar attack, another passenger plane struck the Pentagon, leaving a gaping gash in the nation’s military hub, killing all on board the plane and more on the ground. Within an hour, a fourth airliner went down near Pittsburgh, killing all aboard.

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Computers

When Charles Babbage, a professor of Mathematics at Cambridge university, invented the first calculating machine in 1812 he couldn’t imagine the situation we find ourselves in today. Nearly everything we do in the world is helped, or even controlled by computers, the complicated descedants of his simple machine. Computers are used more and more often in the world today, for the simple reason that they are far more efficent than human beings. They have much better memories and they can store much information. No man alive can do 500000 sums in one second, but a computer can. In fact, computers can do many of the things we do, but faster and better. They can predict weather, and ever play chess, write poetry or compose music.

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“According to the United States Environmental Protection Agency, driving a car is the single most polluting thing that most of us do.” This is not a new problem. In the 1950’s the Los Angeles smog made head-line news. Car exhaust causes health problems. There are many solutions to the problem.

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Ecology is a very popular word today. But what does it mean? Ecology is a since which studies the relationship between all forms of life on our planet and the environment. This word came from Greek “oikos” which means home. The idea of home includes our whole planet, its population, Nature, animals, birds, fish, insets and all other living beings and even the atmosphere around our planet.

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Geography

The continent of Australia, with the island state of Tasmania, is approximately equal in area to the United States (excluding Alaska and Hawaii). Mountain ranges run from north to south along the east coast, reaching their highest point in Mount Kosciusko (7,308 ft; 2,228 m). The western half of the continent is occupied by a desert plateau that rises into barren, rolling hills near the west coast. The Great Barrier Reef, extending about 1,245 mi (2,000 km), lies along the northeast coast. The island of Tasmania (26,178 sq mi; 67,800 sq km) is off the southeast coast.
History

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Great Britain is a constitutional monarchy. This means that it has a monarch as its Head of the State. The monarch reigns with the support of Parliament. The powers of the monarch are not defined precisely. Everything today is done in the Queen’s name. It is her government, her armed forces, her law courts and so on. She appoints all the Ministers, including the Prime Minister. Everything is done however on the advice of the elected Government, and the monarch takes no part in the decision-making process.

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