This is a scientific thinking training series with knowledge, stories and inspiration for children. It contains If You Could Run as Fast as Light , Why can't Quantum be Cloned and How to Measure the Expansion Speed of the Universe Teacher Wang Jie, winner of the National Wen Jin Book Award, explains the most advanced scientific knowledge to the children in humorous language. Through detective stories, scenario simulation, analogy and other methods, the original profound scientific knowledge was transformed into the children's language, so that the children can understand the advanced knowledge easily such as relativity, quantum mechanics and astronomy. This book also guides the children to think independently about the connection between all things, and cultivates their scientific thinking. (E- book available)