preface

Episode 1: Galileo's Drop Experiment
Episode 2: Let's be selective about what we eat!
Episode 3 What day is April 1st?
Episode 4: Namsan Secret Lab Revealed!
Episode 5: Even the villain succeeds in time travel?
Classical mechanics or quantum mechanics, that is the question!

Episode 6: The Discovery of Nuclear Fission
Episode 7: The Manhattan Project
Episode 8: Nuclear Fusion and the Hydrogen Bomb
Episode 9: Fermi's Reactor
Episode 10: The Clue Left Behind by Woolsthorpe
Meitner's OX Quiz: Get it right in your head!

The secret of the atomic bomb is finally revealed!

A children's science learning cartoon that explains quantum mechanics in an easy and fun way.
『Quantum Mechanics for Elementary School Students 4 - The Secret of the Atomic Bomb』 is the fourth book in the 『Quantum Mechanics for Elementary School Students』 series, and continues the story of Down and his friends as they learn quantum mechanics directly from scientists they meet during their time travel.
The unidentified villains who appeared in the previous episode persistently follow Down and his group until they discover the secret of time travel and finally succeed in time travel.
As the identities of the enigmatic villains are revealed, it is revealed that they are acting under orders from a massive organization.
Why do they want to stop Down and his party from time travel? What connection does their goal have to quantum mechanics? Young readers will learn new and exciting quantum mechanics alongside Down and his party as they steadfastly continue their adventure despite increasingly intense obstacles.

『Quantum Mechanics for Elementary School Students 4』 focuses on the topic of ‘The Secret of the Atomic Bomb,’ which is also the subtitle of the book.
Learn about the principle of nuclear fission, the atomic bomb, from physicist Lise Meitner in an easy and fun way, and learn how the atomic bomb is made based on nuclear fission through a delightful explanation from Robert Oppenheimer, who led the development of the atomic bomb.
Moreover, the conflict between Oppenheimer and Edward Teller over the atomic bomb provides readers with an opportunity to reflect on the ethics of scientists.

This book also examines how quantum mechanics solves problems that classical mechanics could not solve.
In particular, we will examine in detail the limitations of classical mechanics and how quantum mechanics overcomes these limitations, using the example of 'alpha decay', in which a nucleus emits alpha particles and changes into another nucleus.
Through this content, readers will learn why quantum mechanics is necessary, and at the same time, they will understand the process through which science develops.

This book is also a helpful reference book for school science studies, as it contains a lot of content that is related to the elementary science curriculum and even the middle and high school science curriculum.
You can learn about the causes of fire and how to put it out (elementary science, 6th grade, 2nd semester, 'Combustion and Extinguishing' unit), the principles of how nuclear energy is created (middle school science, 3rd grade, 2nd semester, 'Energy Conversion and Conservation' unit), and what the quantum tunneling effect is (advanced science, Physics 2, 2nd semester, 'Quantum Tunneling Effect' unit) through interesting stories.
"Quantum Mechanics for Elementary School Students 4," which is linked to various learning contents, will serve as a solid foundation for current and future science studies.


Revisit the core of quantum mechanics with a variety of learning activities!
Have fun and learn at the same time with just one special scientist character card!

There are useful and fun learning activities included throughout the book to help you review the content.
By solving problems that distinguish between classical mechanics and quantum mechanics and solving OX quizzes that extract only the core concepts of nuclear fission and nuclear fusion, you will soon find yourself grasping the core of quantum mechanics.

Another great strength of the book is that it includes scientist character cards as a special appendix that allow you to enjoy various games.
The first is "One, Two, Three! Who Will Win?", where you have to combine cards to get a high score, and the second is "Who, Who? Guess the Character!", where you have to mimic the character's facial expressions and actions to guess who it is.
Enjoy a fun and laughter-filled game with your family and friends!


◇ Introducing the 'Quantum Mechanics for Elementary School Students' series

This is a science educational cartoon that explains difficult quantum mechanics in an easy and fun way for elementary school students to understand.
It was serialized to great popularity in Children's Science Donga.
What is antimatter, the opposite of matter? What is quantum tunneling, the phenomenon in which particles break through energy barriers? What is quantum entanglement and how quantum teleportation is achieved based on it? How are lasers made?
Over 40 scientists share fascinating stories about quantum mechanics.

◇ Curriculum linkage

- Elementary science
The Life Cycle of a Plant, 1st Semester, 4th Grade
Plant Life, 2nd Semester, 4th Grade
Combustion and Digestion, 2nd Semester, 6th Grade
Energy and Life, 2nd Semester, 6th Grade

- Secondary science
Force and Motion, Semester 1, Year 1
Composition of Matter, 1st Semester, 2nd Year
Light and Waves, 1st Semester, 2nd Year
Energy Conversion and Conservation, 2nd Semester, 3rd Year

- Advanced Science
Environment and Energy, 2nd semester, 1st year
Physics 1, Semester 1: Laws of Motion
Physics 1, Semester 1: Structure and Properties of Matter
Physics 2, Semester 1, Laws of Motion
Physics 2, Semester 2: Microscopic World and Quantum Phenomena