Kim Yong-un et al.: Fun School Trip 4: The World of Space (30th Anniversary Edition)

This is the 30th anniversary edition (revised edition) of *A Fun Math Journey* (4 volumes), which opened a new chapter in popular mathematics books by immersing countless readers in a magical world of mathematics. The content has been reviewed and proofread once, and the text and cover design have been revised. Volume 4 contains stories about the various spaces created by mathematics. Let us step away from Euclid's space, which was considered absolute truth for 2,000 years, and enter the fascinating dimensions and spaces crafted by mathematical imagination, including the fascinating world of topology where triangles, squares, and circles are perceived as the same shape; the secret of the Klein bottle, a 4-dimensional figure where the inside is the outside and the outside is the inside; the mystery of Lobachevsky space, where straight lines become curves and curves become straight lines; the theory of catastrophe, which mathematically calculates even human psychology and behavior with precision; and "The Geometry of Knots," mathematical problems created by knots.

Korean title: 재미있는 수학여행 4: 공간의 세계(30주년 기념판)

Korean author: 김용운 외

Korean publisher: 김영사

ISBN-13: 9788934944164