Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ... draughtsmen .. (1897)
Willson, Frederick Newton, 1855-1939 · Princeton, N.J., The author · leaf 78
drawn through the points of contact of said pair of tangents.* On the subject of map construction the student is referred to Craigs Treatise on Projections. THE WITCH OF AC4NISI. 205. If on any line S Q, perpendicular to the diameter of a circle, a point S be so locatedthat S Q : A B :: P Q : Q B… … The point E, at the same level as the centre 0, is a diameters distance from the^ latter. The tangent at B is an asymptote to the curve. The area between the curve and its asymptote is four times that of the circle involved in itsconstruction. The Witch, also called the Versiera, was devised by…
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
