Parents always hope their children will acquire more scientific knowledge, but the path from pure science to technology is actually extremely long. What truly and directly changes our lives are the successive advancements in technology. Mr. Wu Jun's book A Technology History for Children helps teenagers build a solid foundation in scientific literacy, enabling them to view the world more holistically and integrate knowledge from various disciplines.
— Yu Minhong, Chairman of New Oriental Education & Technology Group

Every child should read a history of technology, as it is essentially the evolutionary history of human thought. How did we, step by step, transform from one species of mammal on this planet into its dominant force? This is a question we inevitably ask when looking back at the long river of history. By the way, at good universities, students in science and engineering often are required to take a course in the history of technology. Because it is general knowledge for deep thinkers.
— Zhang Quanling, Chairman of Shaonian Dedao (Youth Achievement)

I first got to know Mr. Wu Jun by listening to his lectures on The Information Transmission. Mr. Wu is an expert in information science and a masterful storyteller. He consistently uses perfectly apt metaphors, associations, and questions to captivate his audience. This series uses a richly illustrated approach to narrate the development of human technology from primitive society to the future. The text is concise yet not superficial; the content is profound yet not obscure. It covers knowledge in agriculture, industry, science, mathematics, and more. It is truly a rare find in children's literature. I suggest parents use this book as bedtime reading for their children, allowing them to unconsciously learn about the history of human technology and fall in love with science.
— Li Yongle, Teacher at the High School Affiliated to Renmin University of China, Science Video Creator

I prefer the history of technology because, among all histories, it is more hardcore, more logical, and clearer. After reading A Technology History for Children, it feels like a lush tree of human technology has grown in my mind. The origins of people's work, life, and cultural characteristics today can all be found in this book.
— Brother Hunzi (Hunzi Ge), Founder of the WeChat Public Account "Hunzhi"

★ Dr. Wu Jun, the author, is an authoritative writer with global influence.
He holds a PhD in Computer Science from Tsinghua University and Johns Hopkins University (a globally top-tier research university). He formerly served as a principal designer of Google's search algorithms for Chinese, Japanese, and Korean and as Vice President of Tencent's search business. He is now an investor based in Silicon Valley.

★ The original work upon which this book is based won the "Wu Dayou Prize for Popular Science Books" and was shortlisted for "China Good Book"!
This book is a quality product validated by both the market and professional circles: it has long been a top-seller in the adolescent popular science category on Dangdang (China's largest online book retailer). It holds an average rating of 8.5/10 on Douban (a major Chinese review platform) with over 400,000 readers recommending it!

★ This book perfectly addresses a global educational focus: cultivating the next generation's core scientific literacy and critical thinking skills!
The book's design aligns highly with concepts emphasized in European and American education systems, such as "Inquiry-based Learning" and "Science Practices." It effectively helps young people build a lifelong framework for scientific thinking. For instance, in Science Lessons, 40 milestone stories completely recreate the entire scientific process, from posing questions and designing experiments to drawing conclusions.

★ A "Scientific Journey" guide that truly sparks curiosity!
From Archimedes in ancient Greece to modern scientists discovering the Higgs boson, this book seamlessly integrates mathematics, physics, chemistry, biology, astronomy, and other disciplines through over 1,000 cross-disciplinary knowledge points and more than 300 vivid and interesting illustrations. It answers those fundamental questions that drive human progress: How do we measure the world? How do we discover unknown elements? How do we "listen" to the echoes of the universe? It helps young readers think like scientists and develop a grand, historical understanding of the technological world we inhabit.

★ "Science is not a collection of facts, but a way of understanding the world." This book is an excellent map to that way of understanding.

This series consists of 4 volumes:
"40 Great Science Adventures"
"A History of Technology"
"The Wonderful World of Math"
"The Language of Technology"

Why can't the swift-footed chase up the tortoise?
Is it possible for a part of something infinite to be greater than the whole?
Does the barber actually cut his own hair?
Why isn't √2 a rational number?
...

Through these various questions, scientists began to explore the fascinating world of mathematics—using it to measure the height of pyramids, predict the trajectories of comets, study the structure of the brain, and delve into the quantum realm... Mathematics is the foundation of disciplines such as physics, chemistry, biology, and astronomy; every major advancement of humanity is inseparable from mathematics.

This book, by examining 40 classic mathematical problems that have influenced the world, presents the brilliant wisdom of humanity throughout its exploration of these subjects. It creatively outlines the development of mathematics, helping you discover a fascinating and extraordinary mathematical world. It teaches you to view the real world through the eyes of mathematics, think about it with mathematical logic, and express it in mathematical terms.

Dr. Wu Jun

An internationally renowned computer scientist, bestselling author, and Silicon Valley investor.

· Exceptional Educational Background: Graduated from China's top institution, Tsinghua University, and Johns Hopkins University (a world-leading research university), earning a PhD in Computer Science.

· Profound Industry Experience: Formerly a Senior Research Fellow at global tech giant Google, where he was a core designer of its Chinese, Japanese, and Korean search algorithms; later served as Vice President of search business at Chinese internet giant Tencent. Currently active in Silicon Valley in investment.

· An Outstanding Science Communicator: He is a recipient of the "Wenjin Book Award," one of China's most influential book prizes, and the "Wu Dayou Prize for Popular Science Books," a significant award in the Chinese-speaking world. His works excel at transforming complex topics in technology, history, and economics into accessible language, beloved by readers of all ages.

· An Advocate for Education: In addition to this series, he has authored several bestselling works including The Beauty of Mathematics, The Summit of Waves, and A Global History of Technology. He also serves on the Board of Trustees for the Whiting School of Engineering at Johns Hopkins University, continuously contributing to education and talent development.

Lesson 1: How is Pi Calculated?
Lesson 2: The Pythagorean Theorem
Lesson 3: The Problem of Irrational Numbers
Lesson 4: The Invention of Number Systems
Lesson 5: The Invention of Zero
Lesson 6: The Golden Ratio
Lesson 7: The Problem of the Area of Rectangles
Lesson 8: The Problem of the Area of Circles
Lesson 9: The Formula for the Volume of a Sphere
Lesson 10: Zeno's Paradoxes
Lesson 11: Solutions to Quadratic Equations
Lesson 12: Binomial Expansion and Pascal's Triangle
Lesson 13: Solutions to Cubic Equations
Lesson 14: The Invention of Imaginary Numbers
Lesson 15: The Chinese Remainder Theorem
Lesson 16: Indian Chess and the Grain Problem
Lesson 17: Fermat's Last Theorem
Lesson 18: Problems with Arithmetic Progressions
Lesson 19: The Fibonacci Sequence
Lesson 20: The Problem of Instantaneous Velocity
Lesson 21: The Problem of Infinitesimals
Lesson 22: The Problem of Function Continuity and Calculus
Lesson 23: The Seven Bridges of Königsberg Problem and Graph Theory
Lesson 24: The Problem of the Gambler's Chance of Winning
Lesson 25: The Problem of the Cyclical Definition of Probability
Lesson 26: Hilbert's Hotel Paradox
Lesson 27: The Problem of the Parallel Postulate
Lesson 28: The Three Classical Geometry Problems
Lesson 29: Boolean Algebra
Lesson 30: Russell's Paradox
Lesson 31: Gödel's Incompleteness Theorem
Lesson 32: Hilbert's Tenth Problem
Lesson 33: The Riemann Hypothesis
Lesson 34: The Four-Colored Map Problem
Lesson 35: Poincaré's Conjecture and Topology
Lesson 36: The Mersenne Prime Problem
Lesson 37: Goldbach's Conjecture
Lesson 38: NP Problems
Lesson 39: Entropy: The Formula for Measuring Information
Lesson 40: The Millennium Problem
Afterword: "We must know; we shall surely know."