global warming definition. The term attached to the notion that the Earth's temperature is increasing due to the greenhouse effect. Note: Whether global warming is actually happening is a subject of scientific debate.
Like jet airplanes, space rockets work on a principle called action and reaction (another name for Newton's third law of motion). The massive force (action) generated by hot gases firing backward from a rocket's engines produces an equal force (reaction) that pushes the rocket forward through space.
A three-stage rocket can reach about three times the speed of a single-stage rocket. Most spacecraft are launched into space on top of a three-stage rocket. The first stage or booster, is the biggest because it has to lift itself, the other rockets, and the spacecraft through the densest part of the atmosphere.The booster fires for only one or two minutes before its fuel supply is exhausted. three-stage rocket can reach about three times the speed of a single-stage rocket. Most spacecraft are launched into space on top of a three-stage rocket. The first stage or booster, is the biggest because it has to lift itself, the other rockets, and the spacecraft through the densest part of the atmosphere.