590,000 subscribers! Over 300 million cumulative views! From Korea's leading science channel 'Igwahyung' comes the popular short-video series "But This Is Wrong" — now a warm and approachable science book grounded in solid scientific facts. Science exists everywhere in the world we live in. From the simple act of lifting an object, to the rainbow that appears after rain, a cat leaping across a rooftop, and the hidden secret behind bathroom glass — understanding science helps us better understand ourselves and the world around us. This book carefully selects the most popular content from Korea's top science channel [Igwahyung], adding fun illustrations and friendly scientific explanations to create an engaging science book for general readers. Combining solid scientific facts with warm comfort, it invites readers to dive deeper into the questions that a one-minute short video simply couldn't fully answer. In 《Igwahyung's But This Is a Science Book: Volume 2 - Modern Science Edition》, the author explores topics from modern science and everyday life that spark curiosity — including relativity, string theory, wormholes, the curvature of spacetime, and epigenetics — all explained through the author's signature, irresistibly engaging storytelling style. Through this book, readers of all ages can take one step closer to the world of science.