Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 195
as centre, and radius equal tot A, set off on AB the point lo. Join tw, and produce the lineto w. This is the normal. The tausfent rs is at ri^ht angles to it. 174 PRACTICAL PLANE GEOMETRY The liypocycloid possesses a very peculiar and importantproperty, which is illustrated in Fig. 309. If the… … ;p is describing the straight line pB, the point A will describethe straight line A^. If the generating circle were to make a complete revolutionround the directing circle, the points A and p would describethe diameters DB and AE to the larger circle, at right angles toeach other. XVI CYCLOIDAL…
Geometrical drawing
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