Rockets
What goes up must come down. This has been the focus of millions of people fascinated with overcoming this power we call gravity. They do this with rockets. Just like Gemini, Mercury and Apollo, hundreds of thousands of Americans engage in a weekender's activity: model rocketry. From 200 to 2000 feet, low power rocketry is a hobby anyone can start on. My search for information in the subject of rocketry took me to many different forms of media. Newspapers, magazines, books, interviews, and last but certainly not least, the all powerful (and sometimes frustrating) Internet. The first place I started looking (or should I say finding) was the library. Actually, this is where I got my idea. I saw a book on rocketry. Then I went online. The Internet was the focal point of my success. You see, besides WebPages I also found magazine articles, newspaper clippings, and even a T.V transcript. My interview was on the Internet and it worked out very well. I got a lot of information using the Internet.Rockets were invented in ancient china. They used black powder (gunpowder) and bamboo tubes. Though they were unpredictable and inefficient. Nowadays they are as available as model cars. You are able to buy them in virtually every state. You
You see when you ignite an explosive it creates a lot of exhaust gases. " Sounds like a mouthful but ill try to simplify. Some come down by helicopter blades on the rocket. For example, just from this report I have learned that to find the height of a rocket you need to multiply the tangent of the angle A times the distance from the launchpad to where you are standing. This makes a trail of smoke come out and allows the rocket to coast to its apogee, or peak of flight. Some cause the rocket to come out part way changing the cg (center of gravity) and it tumbles down. There is one that has a camera onboard and takes pictures. At the bottom is the engine and the fins. Now the engines are very sophisticated by themselves. The nose cone is quite possibly the most important part of the rocket. I guess I should start out with telling you what a rocket is.
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