### Bluffs, Other than Rocky

The typical representation of bluffs (other than rocky) on a topographical map.

### Rocky Bluffs

The typical representation of rocky bluffs on a topographical map.

### Curved buccina

"The buccina is curved for the convenience of the performer, with a very wide mouth, to diffuse…

### Cardioide

Illustration showing a cardioide.

A cissoid curve.

### Combination Horizontal Alignment/Intersection, Black and White

"The horizontal alignment Turn signs may be used in advance of situations where the horizontal roadway…

### Combination Horizontal Alignment/Intersection, Color

"The horizontal alignment Turn signs may be used in advance of situations where the horizontal roadway…

### Combination Horizontal Alignment/Intersection, Outline

"The horizontal alignment Turn signs may be used in advance of situations where the horizontal roadway…

### Combination Horizontal Alignment/Intersection, Silhouette

"The horizontal alignment Turn signs may be used in advance of situations where the horizontal roadway…

### Conchoid

Illustration showing a conchoid, "a curve, shell-like in flexure (whence the name), invented by Nicomedes…

### Contorted Rocks

"Curved and contorted rocks, near Old Head of Kinsale." — Encyclopedia Britannica, 1893

### Contour System

In cartography, a contour line (often just called a "contour") joins points of equal elevation (height)…

### Curvature of the Earth's Surface

If the earth were flat, as soon as an object appeared on the horizon we would see the upper and lower…

### Curve in Pavement of Road

Illustration of blueprint used by highway engineers to widen the pavement on the inside of the curve…

### Line, Curved

A curved line with endpoints.

### Line, Curved

A curved line with endpoints. This illustration resembles a parabola.

### Line, Curved

A curved line with endpoints.

### Line, Curved

A curved line with endpoints.

### Line, Curved

A curved line with endpoints.

### Line, Curved

A curved line with endpoints.

### Line, Curved

A curved line with endpoints.

### Line, Curved

A curved line with endpoints.

### Line, Curved

A curved s-shaped line.

### Line, Curved Wavy

A curved wavy line.

### Conchoidal Curves

Illustration showing conchoidal curves.

### Conchoidal Curves

Illustration showing conchoidal curves.

### Confocal Curves

Illustration showing confocal curves.

### Drawing Irregular Isometric Curves of Solid

The illustration of an irregular curves for solid. The isometric projection of the curve can be drawn…

### Equilateral Curves

Illustration showing equilateral curves.

### Pascal's Volute Curves

Illustration showing Pascal's Volute curves.

### Trajectory Curves

Illustration showing trajectory curves.

### Cycloid

Illustration showing a cycloid curve. "The curve generated by a point in the plane of a circle when…

### Cycloid

Illustration showing a cycloid curve. "The curve generated by a point in the plane of a circle when…

### Cycloid

"A cycloid is the curve generated by the motion of a point on the circumference of a circle rolled along…

### Cycloids

Illustration showing cycloid curves. "The curve generated by a point in the plane of a circle when the…

### Depression Contours

The typical representation of depression contours, if otherwise ambiguous, on a topographical map.

### Entasis

"In architecture, the swelling or outward curve of the profile of the shaft of a column. Entasis. e…

### Epicycloid

"In geometry, a curve generated by the motion of a point on the circumference of a circle which rolls…

### Epicycloid and Hypocycloid

Epicycloid is generated by a circle rolled outside of another circle, whereas a hypocycloid is circle…

### Flanche Ordinary

"Azure, a flanche, argent. The flanche is formed by two curved lines nearly touching each other in the…

### Butcher Gambrel

Bar, usually metal, with a central loop and a hook at each end, used to hang a carcass for butchering;…

### Glacier Contours

In cartography, a contour line (often just called a "contour") joins points of equal elevation (height)…

### Glacier Form Lines

In cartography, a contour line (often just called a "contour") joins points of equal elevation (height)…

### Great Circle

A Great Circle is one which would be formed on the earth's surface by a plane passing through the earth's…

### Foci Distance of Hyperbola

Illustration of a hyperbola with distances to foci drawn. "The difference of the distances of any point…

### Line Bisecting Angle Between Focal Radii in Hyperbola

Illustration of a hyperbola with a line bisecting the focal radii. "If through a point P of an hyperbola…

### Irregular Curves

"Curves other than arcs of circles are drawn with the pencil or ruling pen by means of curved or irregular-shaped…

### Area Of Irregular Figures

Illustration of an irregular figure. To find area, divide round curved portions in small steps with…

### Lemniscate

A Lemniscate is, in general, a curve generated by a point moving so that the product of its distances…

### Curved Line

An illustration of a curved line.

### Curved Line

Illustration of a curved line.

### Meridians and Parallels

The Meridian of any given place is that half of the meridian circle which passes through that place…

### Mining crib

"When rock is reached, a curb or crib of either wood or iron is inserted."—Finley, 1917

### Cassinian Oval

Illustration showing a Cassinian Oval.

### Pulley

Two arrangements of pulley: crossed belt and uncrossed belt. The pulleys are constructed with two circles…

### Sand Dunes

The typical representation of sand dunes on a topographical map.

### Sector

"In geometry: (a) A plane figure inclosed between the arc of a circle, ellipse, or other central curve…

### Construction Of Shield's Anti-friction Curve

An illustration showing how to construct Shield's anti-friction curve. "R represents the radius of the…

### Sickle with Serrated Edge

"A reaping hook; a curved blade of steel (anciently also of bronze) having the edge on the inner side…

### Curves of sines

The curve of a sine wave.