Geometrical Optics: Adapted to the Use of the Higher Classes in Schools, Etc

acceleration action angle APPLIED arrow Assume axes axis bearing becomes body called center of gravity circle components consider constant cord couple curve cylinder determine diameter direction distance earth Edition effect ENGINEERS equal equation expressed fall Find follows forces acting formula friction GEOMETRICAL given gives horizontal hour illustration inch inertia integral known length lens light load mass means moment of inertia moments motion moving necessary normal object obtained origin parallel passes pendulum perpendicular placed plane position pressure principle Problem produce radius rays refraction relation represented resistance respect rest resultant rotation seen shown in Fig side similar speed square student Suppose surface tangential tension tion varies vertical weight wheel write zero