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 …showed first 75 words of 849 total…

…showed last 75 words of 849 total…engine is a small tube that is filled with an explosive accelerant. When this accelerant is ignited the explosion forces hot exhaust gases through the nozzle, pushing the rocket forward. Next comes the delay. This makes a trail of smoke come out and allows the rocket to coast to its apogee, or peak of flight. Then comes the ejection charge. This forces the parachute out of the tube. It then gently floats down to earth.