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Illustration of a portable camera obscura device from Johann Sturm, Collegium Experimentale (1676) German philosopher Johann Sturm published an illustrated article about the construction of a portable camera obscura box with a 45° mirror and an oiled paper screen in the first volume of the proceedings of the Collegium Curiosum , Collegium ...
The opaque projector, or episcope is a device which displays opaque materials by shining a bright lamp onto the object from above. The episcope must be distinguished from the diascope , which is a projector used for projecting images of transparent objects (such as films or slides), and from the epidiascope , which is capable of projecting ...
A cutaway drawing, also called a cutaway diagram, is a 3D graphics, drawing, diagram and or illustration, in which surface elements of a three-dimensional model are selectively removed, to make internal features visible, but without sacrificing the outer context entirely.
Various types of audiovisual materials range from film strips, microforms, slides, projected opaque materials, tape recordings, and flashcards. In the current digital world, audiovisual aids have grown exponentially with multimedia such as educational DVDs, PowerPoint, television educational series, YouTube, and other online materials.
The opaque projector, or episcope is a device which displays opaque materials by shining a bright lamp onto the object from above. The episcope must be distinguished from the diascope , which is a projector used for projecting images of transparent objects (such as films), and from the epidiascope , which is capable of projecting images of both ...
In the early and middle parts of the 20th century, low-cost opaque projectors were produced and marketed as a toy for children. The light source in early opaque projectors was often limelight, with incandescent light bulbs and halogen lamps taking over later. Episcopes are still marketed as artists' enlargement tools to allow images to be ...
In mathematics, physics, and art, moiré patterns (UK: / ˈ m w ɑː r eɪ / MWAH-ray, US: / m w ɑː ˈ r eɪ / mwah-RAY, [1] French: ⓘ) or moiré fringes [2] are large-scale interference patterns that can be produced when a partially opaque ruled pattern with transparent gaps is overlaid on another similar pattern. For the moiré ...
[10] Rotoscoping was a popular technique in early animated films made in the Soviet Union. Most films produced with it were adaptations of folk tales or poems—for example, The Night Before Christmas or The Tale of the Fisherman and the Fish.