Area of a triangle in coordinates 143. Angle between two straight lines 155. Properties of the Momental Area of a Rotor 156. If the momental area of a Rotor is zero for three non- 162. Two parallel rotors equal and opposite have no resultant 126 169. Theorems in Pure Geometry deduced from (a) drawing Measurement of Momental Areas of Parallel Rotors 173. Connection of Mass-centre with Centre of Parallel Rotors SECTION (II). FORCES. 179. Forces are Rotor Quantities 180. Loaded Beam:-new notation 181. Determination of Reactions again considered 182. Bending Moment and Shearing Force. 183. Bending Moment due to a Travelling Load. |