Description 1 The Principle Behind Winter Light Reflection 2 The History of Time and Clocks 3 The Mystery of Barcodes 4 Fireworks and Gunpowder 5 The Secret of the Curveball 6 Changes in the Shape of Matter 7 How Stains Come Out and Surfactants 8 How Water Systems Work and Their Facilities 9 The Amazing Connection Between Soccer Balls and Geometric Shapes 10 The Principle of Centrifugal Force 11 The Properties of Diamonds 12 The Properties of Water and Oil 13 The Secret Behind Erasing Writing 14 How Musical Instruments Make Sound 15 Friction Between Objects 16 The Principle of Adhesion 17 Tools That Make Things Look Bigger 18 Basic Units of Length and Weight 19 Fun Stories About Dates 20 The Oxidation of Metals 1 The Principle Behind Winter Light Reflection 2 The History of Time and Clocks 3 The Mystery of Barcodes 4 Fireworks and Gunpowder 5 The Secret of the Curveball 6 Changes in the Shape of Matter 7 How Stains Come Out and Surfactants 8 How Water Systems Work and Their Facilities 9 The Amazing Connection Between Soccer Balls and Geometric Shapes 10 The Principle of Centrifugal Force 11 The Properties of Diamonds 12 The Properties of Water and Oil 13 The Secret Behind Erasing Writing 14 How Musical Instruments Make Sound 15 Friction Between Objects 16 The Principle of Adhesion 17 Tools That Make Things Look Bigger 18 Basic Units of Length and Weight 19 Fun Stories About Dates 20 The Oxidation of Metals 21 Stories About Various Colors Appendix: Plus Laboratory, Plus Character Information Author: Masatoshi Koshiba (小柴昌俊) Recent Works: and others, 30 titles in total About the Author: Born in 1926 in Toyohashi, Aichi Prefecture, Japan, he graduated from the Department of Physics at the University of Tokyo and completed his graduate studies there. After further study at the University of Rochester and research at the University of Chicago, he returned to Japan and became a professor at the Faculty of Science, University of Tokyo. In 2001, he was awarded the Nobel Prize in Physics for his contributions to the detection of cosmic neutrinos. By observing the elementary particle known as the neutrino, he pioneered 'neutrino astronomy,' helping to unravel the mysteries of supernovae and the sun. Illustrator: Hirose Yayumu Recent Works: 20 titles in total About the Illustrator: Illustrated the Why+ series. Supervised by: Asahi Shimbun Publishing Recent Works: 21 titles in total About: Supervises the Why+ series.