From Thales who lit the fire of science, to Rogier Bacon who told us not to rely on authority too much; from Newton who discovered gravity, to Einstein who created the theory of relativity; from Mozi who studied optics, mechanics and arithmetic, to the skilled craftsmen of ancient China who played with the four great inventions... Science is Played out by a Group of Curious People! This set of books with lively and smart language, the story with gamut of emotions and tells the process of science from nonexistence to pass into existence with a critical and reflective perspective, and then completely change the state of human’s life. With time as a line, characters as a rope, in the form of scenario reenactment, restore the thousands of Chinese and foreign scientific masters in the search for truth in the process of anecdotes, to explore the fruits of their wisdom for future generations of civilization enlightenment. This is the fourth volume of the series.