An early image projector developed in the seventeenth century, where pictures were showcased through transparent plates, typically made of glass. Originally developed for entertainment, it began to be increasingly used for educational purposes by the nineteenth century.
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Pinhole
A small circular hole used in optics and photography as an aperture for a light beam to pass through and…
Four-Shaft Pit Loom
A pit loom with four shafts or harnesses that support the healds through which the warp threads are passed. The…
Brownie Camera
Also known as the Kodak brownie, it is a series of box cameras with a meniscus lens and roll film,…
Bageshwari charkha
Treadle-operated charkha or spinning wheel used in the Indian subcontinent to spin carded wool, cotton, silk, nettle or hemp into…
Ambar Charkha
A version of the traditional charkha which uses multiple spindles as opposed to a single spindle and is intended for…
Lamprey’s Grid
A grid system developed in 1869 by John H Lamprey that was used to photograph subjects for anthropological studies. It…
Dobby
A mechanism attached to a loom that controls warp threads to allow for the weaving of small, usually geometric or…
photosensitive paper
Paper coated with a photosensitive emulsion, used for making photographic prints, usually in a darkroom. It is first exposed to…