A rocket is a missile, spacecraft, aircraft or other vehicle that obtains thrust from a rocket engine. Rocket engine exhaust is formed entirely from propellants carried within the rocket before use. Rocket engines work by action and reaction. Rocket engines push rockets forward simply by throwing their exhaust backwards extremely fast.
While comparatively inefficient for low speed use, rockets are relatively lightweight and powerful, capable of generating large accelerations and of attaining extremely high speeds with reasonable efficiency. Rockets are not reliant on the atmosphere and work very well in space.
Rockets for military and recreational uses date back to at least 13th century China. Significant scientific, interplanetary and industrial use did not occur until the 20th century, when rocketry was the enabling technology for the Space Age, including setting foot on the moon. Rockets are now used for fireworks, weaponry, ejection seats, launch vehicles for artificial satellites, human spaceflight, and space exploration.
Chemical rockets are the most common type of rocket and they typically create their exhaust by the combustion of rocket propellant. Chemical rockets store a large amount of energy in an easily released form, and can be very dangerous. However, careful design, testing, construction and use minimizes risks.
This is the eighteenth cache in this series and it is dedicated to the men and women in the armed forces...and especially to those young men and women who have aspirations to join the active services once they enter their adult years.
Added 3/14/2016: BTCO was the owner of this military series of 26 caches either through the initial publication or through adoption. When he moved to Iowa he did not think he would be able to continue to properly maintain the series. As I had served 27 years in the Air Force he thought I would be a logical choice to assume the ownership of the series. I agreed with his assessment and I adopted the series from him.
You can check your answers for this puzzle on GeoChecker.com.
Adopted by a Nebraskache Member