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.
By Kallie Szczepanski. The Great Leap Forward was a push by Mao Zedong to change China from a predominantly agrarian (farming) society to a modern, industrial society-in just five years.Between 1958 and 1960, millions of Chinese citizens were moved onto communes.he Great Leap Forward was supposed to be a 5-year plan, but it was called off after just three tragic years. The period between 1958 and 1960 is known as the Three Bitter Years in China.