Paradox About Circumference Ratio of Rotating Disk and Non-Euclidean Geometry
LI Shuang-jiu,SHAO Na,WANG Na,ZHENG Yun-long,DU Jian-bo
Journal of Hebei University (Natural Science Edition) . 2008, (6): 583 -588 .  DOI: 10.3969/j.issn.1000-1565.2008.06.007