Rockets
What do you think of when you hear the word “rocket”? You probably think Space Shuttle, Apollo 13, Neil Armstrong maybe. What is a rocket? A rocket is an engine designed to propel itself into the air at high speeds. A rocket engine can produce more power than anything its size. In fact, a rocket the size of car can produce almost 2500 times more power than a car’s engine. A rocket works on a very simple principle. Sir Isaac Newton, in the late 1600’s, discovered three laws of motion. These laws helped lay down foundations of modern rocketry. The third law is most important to rockets. Thos law states that for every action, there is an equal and opposite reaction. Here’s an example: When a gun is fired the bullet shoots out of the barrel going one direction. At the same time the gun recoils in the other direction. Since the gun is heavier it accelerates slower than the bullet, which is an example of Newton’s second law of motion. At the end of the 19th century a Soviet Union schoolteacher, Konstatin Tsiolkovsky, proposed the idea of using rockets for space exploration. In 1896, he began writing the largest work on aeronautics, ”Exploration of Cosmic Space by Means of Reaction Devices”, this book dealt with problems of using r
. . .
Some common words found in the essay are:
Space Shuttle, Module Saturn, Soviet Union, Mexico Roswell, Isaac Newton, Combustion Tests, Missile N-25, Explorer January, Neil Armstrong, Annapolis Maryland, space shuttle, von braun, soviet union, titan ii, fueled rockets, rocket rocket, rocket engine, saturn rocket, liquid fueled, space travel, rocket development team, society space travel, wernher von braun, titan ii rocket, liquid fueled rockets,
Approximate Word count = 2260
Approximate Pages = 9 (250 words per page double spaced)
|
 |
