"65438+100000 Why" is a very good popular science book, covering many aspects of knowledge such as plants, animals, mathematics, physics, chemistry, human body, universe, science and technology, history, culture, military affairs, information science, environmental protection and so on. , and chose nearly a thousand answers to why. These knowledge points are closely related to life and are also common problems that plague children in life, such as why they bloom. Because knowledge is infinite, why do new things keep emerging? Some knowledge is still being explored and scientific answers cannot be made. The original meaning of "65438+ million" does not point to a specific number, but only means "many" or "very many", which is also easy to read, so it is really appropriate to use "65438+ million whys" as the title of the book.