Labels:text | screenshot | new year's eve | fireworks OCR: ROCKET POWER SPACE TECHNOLOGY SPACE ROCKETS WORK in the same way as fireworks; fuel is mixed with a material called an oxidizer, which contains oxygen, the gas necessary for combustion. This mixture, the propellant, burns to form hot gases, which expand, escaping through a nozzle and causing the rocket to move upward. This reaction was first described by the 17th- century English scientist Isaac Newton in his Third Law of Motion. He stated that for every action (the escaping gases) there is an equal and opposite reaction (the rocket's movement). WITH A BANG Celebratory fireworks are no different in basic principle from the rockets that launch spacecraft. SPACE TECHNOLOGY SPACE TRAVEL LIVING IN SPACE
