The propeller airplane, or aeroplane, design in fast landing. This design requires a large landing area…
A design of the propeller airplane, or aeroplane, in flight with a higher tail to create an angle of…
A propeller airplane, or aeroplane, design with a high tail. This design creates a larger angle of incidence…
A motion diagram of the aeroplane, or airplane, illustrating the plane's direction to create thrust…
An illustration of stabilizing the plane by setting the back wing at less angle of incidence than the…
The diagram illustrating an approximate angle of flying an aeroplane, or airplane, flying upside down…
An illustration of creating spirals on a steel rod using mandrel and lathe. The spiral is created by…
A spiral milling apparatus for a lathe to create drills and flutes. The working surface is fastened…
"The Austrian counterscarp casement is constructionally simple. Under the counterscarp wall, on the…
The illustration shows a schematic view of the Stokes Mortar being mounted onto the bipod. The mortar…
A light minenwerfer with 7.6 cm caliber designed by German during World War I. The series of gears adjusts…
A light carriage minenwerfer class mortar used for direct fire. The barrel and the shifting lever is…
A rectangular cube drawn by using oblique projection. The original cube was projected parallel at a…
The illustration showing angles of 15, 30, and 45 degrees at angles 45 and 30 degrees. Measurement of…
A isometric drawing of the oblique and horizontal wood combined together. The image is drawn by creating…
A helix spiral generated by revolving about an axis at an angle less than 90 degrees. This generates…
The illustration detailing of a screw thread. Threads are created by drawing a cylindrical shape at…
A hinge is a type of bearing that connects two solid objects, typically allowing only a limited angle…
"Repsolds' more recent form of the spider—line micrometer (since 1893) for large telescope. Quick…
An illustration of the position and the size of the image viewed by the eye. The eye approximates the…
"If y be the object the image appears to a normal eye situated behind the system L with passive accommodation…
"Since the valve must move a distance equal to the outside lap before admission can take place, it is…
"If the inside lap is increased, the valve must move farther before released occurs and the crank angle…
"If the velocity of impact of the jet is V feet per second, its velocity in the same direction after…
"Now if the plate were shaped as shown, so that the direction of the jet were completely reversed turned…
"If a jet with the velocity V strikes the bucket at an angle a, its velocity A B could be resolved into…
A squared nanogram star with 8 points. The star is created by using two four sided squares on top of…
Sometimes built into a compass, this instrument allows you to determine and measure angles in degrees…
Used for mowing and reaping, consisting of a long curved blade fixed at an angle to a long bent handle.
The work of using a heated tool, or iron to remove wrinkles from fabric. Heating is commonly done to…
A type of chair that is designed for use at a desk in an office. It is generally comfortable and adjustable…
The four fundamental forms of resistance: A, to tension; B, to compression parallel to fiber; C, to…
"The highest of the White Mountains is Mount Washington. We can go in an ordinary train to the foot…
This tool was used to measure the degrees Lovibond of beer. Rated by bitterness, and color.
This span roof frame is one of the most popular. The sashes are held open at any angle required. These…
Phyllanthus chantrieri flowers are brick-red with pale yellow hairs. The flowers bloom in summer. Branches…
Artabotrys uncinatus is a climbing shrub with branches at a wide angle. The leaves are oblong and taper…
A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument…
In Joinery, a common dovetail joint is the most efficient for joining two boards that meet at a right…
A kaleidoscope is an optical instrument invented by Brewster about 1815. It became very popular as a…
This illustration shows a section of a tooth of a typical Labyrinthodont. Labyrinthodont, or Stegocephali…
An example of a simple machine. In the figure, AC is the included plane, CB is the height of the plane,…
Transforming from one set of rectangular axes to another with the same origin, but different direction.
A scriber block is used to layout lines at a set height from the base, thus its second name surface…
Cast metal box parallel with finished surfaces used to for set-ups in machining, layout, and inspection.
A fleet of three ancient Anglo-Saxon ships, each with wind filling the lone sail. Each ship has a dragon…
A secant is "a line which cuts a figure in any way. Specifically, in trigonometry, a line from the center…
"Nautically, a block with two sheaves, whose axes are at right angles to each other, used for the buntlines…
"The curve of sines, in which the abscissas are proportional to an angle, and the ordinates to its sine."…
Also called a parabolic spiral, it is a type of Archimedean Spiral. A spiral is defined as "a plane…