INTRODUCTION A major challenge for mankind is an informed respose to unprecedented urban growth and the intelligent mangement of urban settlements. The 20th century began with perhaps a dozen cities of 1 million resisdents; it will end with several hundred cities of that size, including about 30 ...

INTRODUCTION A major challenge for mankind is an informed respose to unprecedented urban growth and the intelligent mangement of urban settlements. The 20th century began with perhaps a dozen cities of 1 million resisdents; it will end with several hundred cities of that size, including about 30 ...

A Primitive Resource: Solar Energy and Its Many Uses Ever since the dawn of time, the sun has been a resource we cannot live or do without, so its not such a shock that man has come up with the idea of solar energy. Solar energy had many uses. Some can be dangerous and some, a very valu...

Since the discovery of petroleum in the 1860s, fossil fuels have become the foremost source of power in the world. For over a century after their inception, their availability was very seldom called into question. The oil crisis of 1973, however, brought this issue to the forefront. With the widespr...

Technology vs. Environment In today's world, humans are in a very relaxed cycle: they eat, they watch television, they sleep. What most people do not realize are the health risks they are taking every day when they do their daily tasks. Humans are becoming more and more reliant on machines ...

Hydrogen: The Energy Source of the Future There have been many stories in the newspapers, on TV and on the radio about the state that our planet is in, and most of the time they are not too positive. We hear about pollution, and global warming most frequently, which are both caused mainly by the...

According to the Solar Energy Industries Association reports there was a 67% increase in the solar industry from 2009 to 2010 in the United States. In addition to 67% sales increase, the U.S. solar equipment was installed in 2010 a total capacity of 956 megawatts, and the same year, a total generati...

In 1973 OPEC held the world hostage. They arbitrarily put the world in gasoline crisis causing everyone to come to a complete stand still. One of the outcomes of the oil crises of the seventies is that the United States decided that they could not put all of our "fuel" eggs into one &quo...