Manga de Wakaru Soutaiseiriron

At Tagai Academy, students are required to attend summer school to study Einstein’s theory of relativity. Minagi chooses to take the class alone, despite knowing nothing about the subject beforehand. With the help of his teacher, Miss Uraga, he works through the fundamentals of relativity, including inertial frames, spacetime, and the equivalence principle. The story introduces how these ideas influence modern astronomy and technology, such as GPS systems. Readers learn about E = mc², time dilation calculations using the Pythagorean theorem, and thought experiments like the Twin Paradox. It also covers why objects experience length contraction and mass increase at high speeds, and explains the foundations of special and general relativity.