Search results
Results from the WOW.Com Content Network
Two examples of fluorescent blacklight bulbs with light fixtures and packaging and a novelty incandescent bulb. Although blacklights date to 1903 with the development of the optical filter glass Wood's glass, fluorescent ink was not developed until 1932 when the Switzer brothers were inspired by a Popular Science magazine article to experiment in their father's pharmacy.
A display board, also known as poster board, is a board-shaped material that is rigid and strong enough to stand on its own, and generally used paper or other materials affixed to it. Along with quad charts , display boards were an early form of fast communication developed by the National Weather Service of the United States Department of ...
Examples of other psychedelic art material are tapestry, blacklight posters printed with fluorescent ink against backgrounds of velvet black which are intended for display under an ultraviolet lamp which causes the colors to glow in the dark, paisley printed cloths, tie-dyed or batiked curtains and stickers with designs and slogans written in ...
A blacklight, also called a UV-A light, Wood's lamp, or ultraviolet light, is a lamp that emits long-wave ultraviolet light and very little visible light. [ 1 ] [ 2 ] [ 3 ] One type of lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV ...
A navigational box that can be placed at the bottom of articles. Template parameters [Edit template data] Parameter Description Type Status State state The initial visibility of the navbox Suggested values collapsed expanded autocollapse String suggested Template transclusions Transclusion maintenance Check completeness of transclusions The above documentation is transcluded from Template ...
Steel gobos or metal gobos use a metal template from which the image is cut out. These are the most sturdy, but often require modifications to the original design—called bridging—to display correctly. To correctly represent the letter "O", for example, requires small tabs or bridges to support the opaque center of the letter.
This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible. To change this template's initial visibility, the |state= parameter may be used:
Design, as a verb, it refers to the process of originating and developing a plan for a new object (machine, building, product, etc.). As a noun, it is used both for the final plan or proposal (a drawing, model, or other description), or the result of implementing that plan or proposal (the object produced). Fashion design; Garden design ...