Illustration used to show how to construct a bisector of an angle when the sides intersect within the…

Illustration used to show how to construct a bisector of an angle when the sides no not intersect within…

"At that time the only species of navigation known to the Greeks consisted of small boats or canoes…

A prop or support; a piece of timber extending across a corner from one piece of timber to another.

Circle divided into equal parts by concentric circles.

"One of the simplest types of coldframes, which is a lean-to against the foundation of a house." —…

A compound riveted girder is designed to bear a large load in a building or bridge, and is made of either…

A compound riveted girder is designed to bear a large load in a building or bridge, and is made of either…

Conjugate diameters perpendicular to each other are called, axes, and the points where they cut the…

Diagram showing how to construct a conic when given the focus and the auxiliary circle. If the focus…

Diagram showing how to construct a conic when given the focus and the auxiliary circle. The focus is…

Diagram showing how to construct a conic when given the focus and the auxiliary circle. As the focus…

Illustration of the various layers of a Roman road. This is a section of the Appian Way, built across…

Illustration of of construction of an arc when the chord and height of the segment are given.

Illustration of the construction used to bisect a given angle.

Illustration of the construction used to bisect a given line.

Illustration used to construct a circle when given two points that it passes through and a radius.

Illustration of a triangle with its incircle and three excircles constructed.

Illustration of the construction used to circumscribe a circle about a given triangle.

Illustration used to construct a common tangent when given two circles.

A line which is divided into seven equal parts, shown by construction.

A line which is divided into equal parts, shown by construction and square.

Illustration of the construction used to create an equal angle given a point in a given straight line…

Illustration of the construction used to escribe circles with centres (centers) called ex-centres of…

Illustration of the construction used to find the third angle of a triangle when two of the angles are…

Illustration used to construct a circle that shall pass through a given point and cut chords of a given…

Illustration of the construction used to inscribe a circle in a given triangle.

Illustration of the construction used to make a parallelogram when given two sides and the included…

Illustration to let fall a perpendicular upon a given line from a given external point.

Illustration of the construction of a perpendicular to a line when given a point O on the straight line.

Illustration of the construction of a perpendicular to a line when given a point B on the straight line.

Illustration of of construction of a radius when given only a part of the circumference.

Illustration of of construction of a radius when given only a part of the circumference.

Illustration of the construction used upon a given straight line, to describe a segment of a circle…

Illustration of the construction used to divide a straight line into a given number of equal parts.

Illustration of the construction used to create straight line parallel to a given straight line through…

Illustration of the construction used to draw a tangent to a given circle through a given point.

Illustration of the construction used to make a triangle when given two sides and the angle opposite…

Illustration of the construction used to make a triangle when given two sides and the angle opposite…

Illustration of the construction used to make a triangle when given two sides and the angle opposite…

Illustration used to construct a triangle , given the perimeter, one angle, and the altitude from the…

Illustration of the construction used to make a triangle when given a side and two angles.

Illustration of the construction used to make a triangle when given three sides.

Illustration of the construction used to make a triangle when given two sides and the included angle.

Illustration showing the correct and incorrect position of a right line pen against a T-square, triangle,…

Constructive system of a Gothic church illustrating the principles of isolated supports and buttressing.

Any four-point on a curve of the second order and the four-side formed by the tangents at these points…

"The large iron vessel does not allow air to escape once it is lowered into a body of water for underwater…

End elevation and section of Dixie 4-Cylinder Magneto showing construction and connections.

Pattern that can be cut out and folded to construct a regular dodecahedron. Fold on the dotted lines,…

An illustration of a dry dock, a narrow basin or vessel that can be flooded to allow a load to be floated…