Drawing 2. [Thornton and Gallalee].
This course requires each week three hours of lecture work and
nine of study and practice, of which six are in the drawing-room
under the tuition of the instructor. The distribution of topics is
as below: Hours, 12-2, Tuesday, Thursday, Saturday. Lectures, 11-12,
Monday, Wednesday, Friday.
Fall Term.—Graphical Statics.—The necessary preparation is
such knowledge of experimental mechanics as is given in Physics
1. The theory and use of graphical methods in mechanics are
carefully taught and illustrated by means of problems in the composition
and resolution of velocities and accelerations, and of forces
and moments. Applications follow to the determination by graphical
methods of centers of gravity and moments of inertia, to the
construction of stress sheets for the simpler forms of roof trusses
and bridges, to the study of the stability of reservoir dams and
retaining walls, and to the calculation of internal stress in girders
and shafts.
Winter Term.—Descriptive Geometry.—The required preparation
is given by Drawing 1. The fundamental problems on the
point, line, and plane are carefully studied, with applications to the
construction of shadows on polyedra and to the graphical statics
of force systems in three dimensions. The projections, tangencies,
sections, and intersections of curved surfaces are then taken up,
with applications to the determination of shades and shadows on
such surfaces. The course concludes with an elementary theory
of linear perspective.
Spring Term.—Structural Drawing.—The methods of Graphical
Statics and Descriptive Geometry are applied to the design and
analysis of a series of simple structures in masonry, timber, steel,
concrete, and so on. Incidental instruction is given in the elements
of stereotomy, the construction of joints in carpentry, and
the analysis of simple types of roofs and bridges.
