Rocket
A rocket is a vehicle or device that uses a rocket engine to propel itself through space or atmosphere. The rocket engine works by expelling mass in one direction, thus generating a force in the opposite direction. Rockets are commonly used for space exploration, satellite launching, and military purposes. Rockets can be classified into different types based on their propulsion systems, such as solid fuel rockets, liquid fuel rockets, and hybrid rockets. The design of a rocket involves various engineering disciplines, including aerodynamics, thermodynamics, propulsion, and materials science. Rockets have played a crucial role in space exploration, enabling humans to reach the moon and explore other planets. They have also been used for military purposes, such as missile defense systems and intercontinental ballistic missiles.
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