(In the 20th century, the science and technology of human society has developed rapidly, from "Einstein's theory of relativity" to "the construction of spaceships and space stations", from the creation of microelectronics technology to the operation of dozens of trillions of times per second. Computers, from the ancient Chinese poet Li Bai's admiration of "the difficulty of the road in Shu is difficult to reach the blue sky", to the modern "Beijing to Chengdu, can go back and forth every day", in fact, this modern civilization is built on the basis of energy consumption advancement.)