black-glass ultraviolet lamp
41Photoelectric effect — The photoelectric effect is a quantum electronic phenomenon in which electrons are emitted from matter after the absorption of energy from electromagnetic radiation such as x rays or visible light.cite book | title = Physics for Scientists… …
42Incandescent light bulb — The incandescent light bulb, incandescent lamp or incandescent light globe is a source of electric light that works by incandescence, (a general term for heat driven light emissions which includes the simple case of black body radiation). An… …
43technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
44optical ceramics — Introduction advanced industrial materials developed for use in optical applications. Optical materials derive their utility from their response to infrared, optical, and ultraviolet light. The most obvious optical materials are… …
45printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …
46Chance Brothers — Chance s Glassworks, Spon Lane, Smethwick Chance Brothers and Company was a glassworks originally based in Spon Lane, Smethwick, West Midlands (formerly in Staffordshire), in England. It was a leading glass manufacturer and a pioneer of British… …
47Infrared — For other uses, see Infrared (disambiguation). An image of two people in mid infrared ( thermal ) light (false color) …
48Movie projector — This article is concerned with technical aspects of moving film projection. For non film movie projection, see digital cinema. For historical aspects, see the article history of cinema. 35 mm movie projector in operation …
49Photocopier — Copier redirects here. For the piece of photography equipment, see slide copier. For a game copier, see game backup device. A Xerox copier in a high school library. A photocopier (also known as a copier or copy machine) is a machine that makes… …
50Digital Light Processing — The DLP Logo Further information: History of display technology Digital Light Processing (DLP) is a trademark owned by Texas Instruments, representing a technology used in some TVs and video projectors. It was originally developed in 1987 by Dr.… …
