A diagram demonstrating the motion a frog makes whilst swimming. In this stage of the frog's life, the…

"That the cannon ball is capable of attracting as well as being attracted, may be proved by suspending…

A heraldic shield with a red (gules) surface, which is represented by the perpendicular lines, drawn…

The illustration showing the centrifugal governor metal ball removed from the lathe to draw 180 degree…

Illustration of an axis of symmetry drawn with respect to a hexagon.

Illustration of an axis of symmetry drawn with respect to a hexagon.

Horizontal line can be drawn left to right by holding the pencil away from the point.

To tie a bowline knot, lay the end of the rope 'a' over 'b' so as to form a bight 'c'; pass the end…

The most common type of knot, the overhand is made by passing one end of a line over the line and around…

A reef knot is formed by taking an overhand knot and repeating the overhand knot process (pass one end…

A line angled for dividing a field. "Escutcheons that have more than one tincture are divided by lines…

A line arched or enarched for dividing a field. "Escutcheons that have more than one tincture are divided…

A line bevilled for dividing a field. "Escutcheons that have more than one tincture are divided by lines…

A line dancette for dividing a field. "Escutcheons that have more than one tincture are divided by lines…

A line double arched for dividing a field. "Escutcheons that have more than one tincture are divided…

A line dove-tailed for dividing a field. "Escutcheons that have more than one tincture are divided by…

A line embattled or crenelle for dividing a field. "Escutcheons that have more than one tincture are…

A line embattled grady or battled embattled for dividing a field. "Escutcheons that have more than one…

A line engrailed for dividing a field. "Escutcheons that have more than one tincture are divided by…

A line escartelle for dividing a field. "Escutcheons that have more than one tincture are divided by…

A line indented for dividing a field. "Escutcheons that have more than one tincture are divided by lines…

A line invected for dividing a field. "Escutcheons that have more than one tincture are divided by lines…

A line nebule for dividing a field. "Escutcheons that have more than one tincture are divided by lines…

A line nowy or franché for dividing a field. "Escutcheons that have more than one tincture are…

A line potent for dividing a field. "Escutcheons that have more than one tincture are divided by lines…

To find the projections of a line which joins two points, A, B given by their projections.

A line radient for dividing a field. "Escutcheons that have more than one tincture are divided by lines…

A line urdée for dividing a field. "Escutcheons that have more than one tincture are divided…

A line wavy or undé for dividing a field. "Escutcheons that have more than one tincture are divided…

Illustration showing a line with a midpoint drawn from a given exterior point to a given circumference.

Illustration showing a line that remains parallel to a given line, and touches at one end a given circumference.

Illustration showing a line that moves so that its ends constantly touch two fixed lines which are perpendicular…

Projections of a line inclined to both the horizontal and vertical planes will not show its true length,…

"Lines of force of a circular loop. If a current flow through the loop in the direction indicated, the…

"Lines of force in a circular loop. If the loop pass through a piece of cardboard at right angles to…

Illustration of two parallel lines with equal segments between them. Two parallel lines are everywhere…

Illustration that shows if two parallel lines are cut by three or more transversals that pass through…

Illustration that shows if two parallel lines are cut by three or more transversals that pass through…

Illustration of perpendicular lines. Intersecting lines that meet at a right angle.

Illustration of perpendicular lines with the horizontal and vertical lines labeled. "A horizontal line…

An exercise problem to create a vanishing point using lines. The line is drawn by placing a dot into…