About TAKUWA Yoshimi
About Tokyo Inst. Technol.
About Historia Scientiarum
About invariance
About Light
About Color
About optics
About refraction
About science history
About history of physics
About Newton
About Newton派
About experimentum crusis
About 科学の大衆化
About Optics in general
About Physics in general
About 歴史
About 色
About 不変性
About 証明