Problems that are difficult for scientists to understand

Chapter 1 Preface
While recording the process of human development, history has left a lot of unsolved mysteries. After reading this book, you may have many questions: In modern society, science and technology are highly developed and knowledge is extremely rich. It can clone cattle and sheep, send satellites into the sky, and set foot on the moon... What problems can scientists not solve?However, there are indeed many mysteries in real life that humans have not been able to solve so far.Even with today's scientific and technological means, even the smartest scientist in the world can't find out the answer to the mystery.

The earth is the home of our existence, but the earth also has too many mysteries.Why does the human body spontaneously combust?Why do people die on roads without life?Xiang Yu left a strange symbol in search of treasure, what does it mean?Why has no one been able to solve the mystery of Stonehenge in the Salisbury Moor area of ​​southern England for thousands of years... The great charm of these unsolved mysteries attracts people's curiosity like a magnet and inspires people to explore A strong interest in truth, at the same time, challenges modern technology.

In the human body, geography, treasures, history, ancient civilizations, wars and many other fields, there are all kinds of unsolved mysteries.Human scientific knowledge and social civilization achievements are almost all created and developed in the process of exploring and answering various unknown things.After reading this book, young readers will easily understand, master, and expand knowledge in various fields, and stimulate interest in exploring the unknown.May this book be a key to open the door of world history, let children see the vicissitudes of the world for thousands of years, learn scientific knowledge in the process of finding answers to those unsolved mysteries, and finally fall in love with science!
(End of this chapter)