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  2. Swedenborg 1714 Flying Machine - Wikipedia

    en.wikipedia.org/wiki/Swedenborg_1714_Flying_Machine

    Swedenborg's flying machine was not widely known until his notebook containing the sketch was discovered in 1867-1868 at the Diocesan Library at Linköping, Sweden [10] [11] by a visiting researcher from the United States of America. It dates from 1714 and is referred to as "The Manuscript": the published description is referred to as "The ...

  3. Oblique projection - Wikipedia

    en.wikipedia.org/wiki/Oblique_projection

    Oblique drawing is also the crudest "3D" drawing method but the easiest to master. One way to draw using an oblique view is to draw the side of the object you are looking at in two dimensions, i.e. flat, and then draw the other sides at an angle of 45°, but instead of drawing the sides full size they are only drawn with half the depth creating ...

  4. Multiview orthographic projection - Wikipedia

    en.wikipedia.org/wiki/Multiview_orthographic...

    In technical drawing and computer graphics, a multiview projection is a technique of illustration by which a standardized series of orthographic two-dimensional pictures are constructed to represent the form of a three-dimensional object.

  5. 3D projection - Wikipedia

    en.wikipedia.org/wiki/3D_projection

    The parallel lines through P.V. (in red) intercept L.O. in the vanishing points Fs and Fq: thus one can draw the projections s′ and q′, and hence also their intersection R′ on R. Perspective projection or perspective transformation is a projection where three-dimensional objects are projected on a picture plane. This has the effect that ...

  6. Projection plane - Wikipedia

    en.wikipedia.org/wiki/Projection_plane

    A picture plane in perspective drawing is a type of projection plane. With perspective drawing, the lines of sight, or projection lines, between an object and a picture plane return to a vanishing point and are not parallel. With parallel projection the lines of sight from the object to the projection plane are parallel.

  7. Siblings claim late dad is mysterious plane hijacker DB ... - AOL

    www.aol.com/news/siblings-claim-dad-mysterious...

    A sketch of DB Cooper, the man who hijacked a Boeing plane in 1971 and jumped off with a parachute and $200,000. AP. After her death, the siblings met with aviation YouTuber Dan Gryder, ...

  8. Early flying machines - Wikipedia

    en.wikipedia.org/wiki/Early_flying_machines

    It has been claimed [59] that these sketches show that Cayley modeled the principles of a lift-generating inclined plane as early as 1792 or 1793. In 1796, Cayley made a model helicopter of the form commonly known as a Chinese flying top, unaware of Launoy and Bienvenu's model of similar design. He regarded the helicopter as the best design for ...

  9. Orthographic projection - Wikipedia

    en.wikipedia.org/wiki/Orthographic_projection

    Orthographic projection (also orthogonal projection and analemma) [a] is a means of representing three-dimensional objects in two dimensions.Orthographic projection is a form of parallel projection in which all the projection lines are orthogonal to the projection plane, [2] resulting in every plane of the scene appearing in affine transformation on the viewing surface.