sufficient lighting
51photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
52Correlation does not imply causation — (related to ignoring a common cause and questionable cause) is a phrase used in science and statistics to emphasize that correlation between two variables does not automatically imply that one causes the other (though correlation is necessary for …
53Electrical power industry — The electrical power industry provides the production and delivery of electrical power (electrical energy), often known as power, or electricity, in sufficient quantities to areas that need electricity through a grid. Many households and… …
54Wireless energy transfer — or wireless power is the transmission of electrical energy from a power source to an electrical load without artificial interconnecting conductors. Wireless transmission is useful in cases where interconnecting wires are inconvenient, hazardous,… …
55photography, history of — Introduction method of recording the image of an object through the action of light, or related radiation, on a light sensitive material. The word, derived from the Greek photos (“light”) and graphein (“to draw”), was first used in the… …
56Customer Cost — refers not only to the price of a product, but also encompasses the purchase costs as well as use costs and post use costs. Purchase costs mainly consist of the cost of searching for a product, gathering information about it and obtaining it. The …
57William Murdoch — Infobox Scientist name = William Murdoch box width = image width = caption = birth date = Birth date|1754|08|21 birth place = Cumnock, East Ayrshire, Scotland death date = dda|1839|11|15|1754|08|21 death place = Handsworth, nr. Birmingham,… …
58Goldsworthy Gurney — Infobox Person name = Sir Goldsworthy Gurney caption = Goldsworthy Gurney in earlier life. birth date = 14 February 1793 birth place = Treator near Padstow, Cornwall, England death date = 1875 death place = other names = known for = occupation… …
59Schools — • History and development of education as related to the church Catholic Encyclopedia. Kevin Knight. 2006. Schools Schools † …
60Key light — The key light is the first and usually most important light that a photographer, cinematographer, or other scene composer will use in a lighting setup. The purpose of the key light is to highlight the form and dimension of the subject. The key… …
