boon 1. n. 1. A benefit bestowed, especially one bestowed in response to a request. 2. A timely blessing or benefit: A brisk breeze is a boon to sailors. [Middle English.
Quantum leaps are the sole cause of the emission of electromagnetic radiation, including light, which occurs in the form of quantized units called photons. Ironically, when laymen use the term colloquially, they use it to describe large jumps in progress, when in reality a quantum leap is a very small change of state.
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.