Looking back on the history of science, a number of important and great discoveries that have contributed to human civilization were made by chance, including the discovery in this book. I hope the contributions in this book will help humanity to improve scientific knowledge in the future. The underground resources, such as oil and coal, are limited in their quantity, while scientific knowledge is endless. Scientific knowledge will grow and develop constantly with human history.

From the beginning there have been two worlds in the universe. One of them is already well known to us. It is composed of every visible material, including this book that you are reading now. On the other hand, the other one which consists of the elementary particles inside this material is little known to us.

It can be seen only through a penetrator scope that shows the inner world and structure of materials. It is the latter that I intend to deal with in this book. This book will show the atomic world within materials, by following the direction of the atomic world, hidden within the visible world of materials. Scientists know that there exists a world of elementary particles in atoms, but they have failed to get the evidence of it.

Over the years several theories of atoms have been discovered. The first hypothesis on atoms was made by the Greek philosophers of Democritus' school around 460 BC. Then, John Dolton inducted their hypothesis into his study and completed the atomic theory called "the origin of an atomic theory".

Modern scientists such as Bohr, Rutherford and Tomson advocated their own atomic models. Afterwards, it became apparent that the radius of an atom is 10-8 centimeters. Out of many scientists who studied atom, only Bohr won the Nobel prize for his atomic model.
If you visit the council room of I.A.E.A. you will find an enlarged picture of his theory diagram hung on the wall as the association's symbol.

As the practical methods to explore the structure of a material with x-rays and electron microscopes have advanced remarkably, scientists have tried to improve the experiments and theories of atoms as earnestly as they could.

Nevertheless, they failed to reveal the true substance of an atom. It seemed impossible for men to see the real one. I think if scientists got a chance to directly observe it, they might have done every effort to make it come true.

This study shows how to discover the real atomic world that has been in fog until now. I am sure that this book will make a lasting contribution in the science history. Through this study you will see a bare atom with its nucleus and bands. This book was originally titled as "A revealed atom: how to see an atom."

The atomic world has been the object of interest and worship not only to physicists and chemists but also to the scholars engaged in other adjacent academic field involving atoms.

If scientists examine and understand this book thoroughly, it will greatly help in advancing their studies.

This book, showing a real atom, introduces a penetrator scope searching for the structure of a material, in a very simple and easy way by making a visible ray penetrate objects. As the invention of x-rays surprised the world with its simplicity, so will this method. It works as incredibly simple as x-rays, and is not so expensive as electron microscopes. I believe it will be diffused to all the scientists throughout the world in a short time.

This book deals with the physical description of the symmetry of a material as well as important physical discoveries including the penetrator scope searching for the structure of a material. As you will probably know after reading this book, most of the physicochemical teaching materials presently used in many colleges are insufficient and incorrect to understand the immense atomic world which has existed since time immemorial.

Chapter 2 discusses the description and the theory connected with the invention of the penetrator scope, the new physical instrument searching for the structure of a material. Chapter 1 enumerates, without any theoretical interpretation, the phenomena which I have already observed through various experiments. Conduct the tests by yourself and you will find the phenomena so beautiful you would like to call them "the gems of science".

Many scientists are expecting atomic power to solve the energy problem of the future world but a great part of the atomic world still remains unknown to us.

This study will clearly unveil the atomic world which has been obscure for 24 centuries since the first atomic theory was established (about 460 BC). Now, I present this book to the world and I am sure that this book will influence future generations directly or indirectly.

The physical reviewer, Sang-ho Kim