### Airplane Wing Free Body Diagram

An airplane wing free body diagram illustrating forces acting on the wing.

### Differential Lens

"Differential Lens.—Horizontal divergence may be obtained to any required amount by varying the radius…

### Differential Lens

"Differential Lens.—Horizontal divergence may be obtained to any required amount by varying the radius…

### Differential Lens

"Differential Lens.—Horizontal divergence may be obtained to any required amount by varying the radius…

### Stabilizing Aeroplane using Dihedral Angle

An illustration of stabilizing the plane by setting the back wing at less angle of incidence than the…

### Dovetail Saw

"The dovetail saw or tenon saw." — Encyclopedia Britannica, 1893

### Earth's Axis Perpendicular to Plane of Orbit

"The earth shown as it would be if its axis were perpendicular to the plane of the orbit." -Wiswell,…

### Aeroplane Engine

A propellor engine illustrating of the motion of the propellor when in flight.

### Rolling of Equal Ellipses

"If two equal ellipses, each turning about one of its foci, are placed in contact in such a way that…

### Rolling of Equal Hyperbolas

Illustration of the rolling of equal hyperbolas. If two equal hyperbolas are placed so that the distances…

### Rolling of Equal Parabolas

Illustration of the rolling of equal parabolas. "The two parabolas may be considered as two ellipses…

### Airplane Fin

The illustration shows the airplane's fin, or keel surface. The fin of the airplane is located on the…

### Flashcard of a Plane

A flashcard featuring an illustration of a Plane

### Wooden Float

A woodworking tool used to cut, flatten, and smooth areas of wood by abrasion.

### Airplane Flying Above Land

A plane flying above land illustrating the use of ailerons to adjust the angle of incidence to adjust…

### Airplane Flying Above Shore

An airplane flying above the show illustrating the aerodynamics of the plane with the tail wing at the…

### Aeroplane Flying Over Plane

An illustration of the plane flying over land from point A to B by flying the plane with the direction…

### Aeroplane Looping and Upside Down Flying

The diagram illustrating an approximate angle of flying an aeroplane, or airplane, flying upside down…

### Aeroplane Nose Spin Dive Flying

The illustration of the plane descending while spiraling down. The radius of the spiral spin is getting…

### Airplane Sideslip Flying

Airplane flying almost sideway, called sideslip. The plane enters sideslip by lowering the wing and…

### Airplane Sideslip Recovery Flying

An illustration of the plane recovered from sideslipping in air.

### Airplane Sideslip Rudder Turned Flying

A sideslip of the plane with the rudder turned left so that the plane flying sideways with the nose…

### Airplane Sideslip Rudder Turned and Elevator Depressing Flying

The airplane is flying with the elevator depressed and rudder turned to recover the plane to the upright…

### Airplane Wash In and Out Flying

The illustration of the plane creating wash in and washout to reduce the lift distribution across the…

### Inclined Plane with Force at an Angle to Plane and Base

"An inclined plane is a slope, or a flat surface, making an angle with a horizontal line...the force…

### Inclined Plane with the Force Acting Parallel to the Base

"An inclined plane is a slope, or flat surface, making an angle with a horizontal line...the force acts…

### Inclined Plane with the Force Acting Parallel to the Plane

"An inclined plane is a slope, or flat surface, making an angle with a horizontal line...the force acts…

### Frustum of a Cone

"The part of any solid between two planes, which may be either parallel or inclined to each other: as,…

### Construction of Geometric Revolution

"The distance of A and B below H is indicated on the V projection. Thus if to A∧h B∧h the perpendiculars…

### Revolutions into the Plane of Geometric Shapes

"The H projection of the line AB in the space is a line connecting the feet of all the perpendiculars…

### Geometrical Plane

Geometrical plane.

### Gimlet

"The Gimlet." — Encyclopedia Britannica, 1893

### Gimlet

"The Gimlet." — Encyclopedia Britannica, 1893

### Hand Saw

"The hand saw." — Encyclopedia Britannica, 1893

### Henson's Flying Machine

A flying machine invented by William Henson in the mid-19th century. Although numerous attempts were…

### Hexagonal Pyramid Cut By Plane

Illustration of a right hexagonal pyramid that has been cut by a plane parallel to the base. The lower…

### Frustum Of A Hexagonal Pyramid

Illustration of a right hexagonal pyramid that has been cut by a plane parallel to the base. The top…

### Frustum Of A Hexagonal Pyramid

Illustration of a right hexagonal pyramid that has been cut by a plane parallel to the base. The top…

### Frustum Of A Hexagonal Pyramid

Illustration of a right hexagonal pyramid that has been cut by a plane parallel to the base. The top…

### Frustum Of A Skewed Hexagonal Pyramid

Illustration of a skewed hexagonal pyramid that has been cut by a plane parallel to the base. The top…

### Intersection of Hexagonal Pyramid and a Plane

Illustration of the intersection of a hexagonal pyramid and a plane.

### Cone Intersected by a Plane to Form a Hyperbola

Diagram depicting a cone with both nappes intersected by plane J to form a hyperbola.

### Inclined Plane

"Suppose the inclined plane, to be two feet from A to B, and one foot from C to B, then, as we have…

### Inclined Plane

"This power, the most simple of all machines, consists of a hard, smooth, plane, inclined to the horizon…

### Inlined Plane with Weight

"The power required to force a given weight up an inclined plane, is in proportion to its height, and…

### Inclined Plane

"An inclined plane is a smooth, hard, inflexible surface, inclined so as to make an oblique angle with…

### Inclined Plane

"One of the primary simple mechanical powers. The plane's surface is inclined to the horizon at any…

### Inclined Plane

"A force pushing a weight from C to D, only raises it through the perpendicular height, E D, by acting…

### Projection Of An Irregular Surface

Illustration of an irregular surface abdc projected upon the flat surface ABCD.

### Jack Plane

"Planes are to be met with in great variety, the most usual for ordinary carpentry being the jack plane."…

### Lapidary's Mill

"In the ordinary pattern of a lapidary's bench the handle turns in a horizontal plane, where W is the…

### Lawson Type C-1 Twin Liberty Motored Aerial Transport

This illustration shows three different views of the Lawson Type C-1 Twin Liberty Motored Aerial Transport.

### Lens

"A lens is a transparent body the two refracting surfaces of which are curved, or one of which is curved…

### Double Convex Lens

"The shape of the double convex lens, d, c, is that of two plano-convex lenses, placed with their plane…

### Lenses of Various Forms

"a, prism; b, plane glass; c, spherical lens; d, double-convex; e, plano-convex, f, double-concave;…

### Line Projection

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

### Projection Of A Line

Illustration of straight line AB projected upon HK.

### Projection Of A Line

Illustration of curved line AB projected upon a flat surface.

### Projections of a Line

Projections of a line parallel to a plane.

### Projections of a Line

Projections of a line perpendicular to a plane.