... the creation and launch of the Early Bird in 1965 by the international telecommunications satellite agency, Intelsat. It became the first synchronous satellite. This qualification means that it remains above a constant point on the earth's surface while in orbit, and it is a characteristic which all modern-day communication satellites possess. Another application for present-day satellites is for Global Positioning. The ... precise path. Originally designed for military use, the network of 24 global satellites was made available to civilians in the 1980s. The satellites operate on solar...

• Word Count: 1229
• Approx Pages: 5

... and a general quality of life. Soon, at least one quarter of the world population will live where water is scarce. Wood is also quickly becoming a scarce resource, and the steady, constant demand for grain is met with a decreasing grain field space" (http://www.srzg.de/nenglish/1wwa/1short/4actions.htm ). With statistics like this future generations will need to find alternative ... in California bad management of this could lead to black outs and rising prices. One method we could improve on is the use of solar energy. I believe we will see great advances in this area. There will be so...

• Word Count: 1632
• Approx Pages: 7
• Grade Level: High School

... 's growing hatred of slavery and his increasing concern for the plight of his brothers, led him to believe he was one of God's chosen instruments. As his conviction deepened, the solar eclipse early in 1831 appeared to him to be a sign that the day of vengeance was at hand. In the following months he collected a small band of followers, and in ... men whose rights and liberties had been proclaimed in the Declaration of Independence. As Afro-American freedmen sought to claim their rights as men and citizens, they were confronted with constant resistance from whites who were unwilling to a...

• Word Count: 2903
• Approx Pages: 12
• Grade Level: High School

... such global concerns as global warming and the greenhouse effect, among others. Instead of using limited resources which also pollute the environment, there will be a move toward facilitating hydroelectric and solar power, having, in general, greater operating efficiency with lower emissions such as pollutants. Fuel technology was first discovered in 1839 by Sir William Grove, now dubbed the "Father of the ... expensive containment structures. This reaction produces only about 0.7 volts from one fuel cell. In order to get a higher voltage, a fuel-cell stack of a number of separate fuel ...

• Word Count: 1822
• Approx Pages: 7