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A projector in the business context is an individual who promotes a project or scheme to combine public benefit and private profit. [1]: 653 The term came into use in sixteenth century England and remained in popular language until the nineteenth century when it fell from use. [2]: 48 The term has often been used pejoratively. [2]: 48
A theater can purchase a film projector for as little as $10,000 [70] (though projectors intended for commercial cinemas cost two to three times that; to which must be added the cost of a long-play system, which also costs around $10,000, making a total of around $30,000–$40,000) from which they could expect an average life of 30–40 years.
Mostly large-format projection (or large-image projection) [1] is used for the use of large-format slide projectors or extremely powerful video projectors for producing still-standing or dynamic images on projection areas of about 100–10,000 m 2 and more. Sometimes the use of slide projector and video projector is combined to reach a kind of ...
IMAX is a proprietary system of high-resolution cameras, film formats, film projectors, and theaters known for having very large screens with a tall aspect ratio (approximately either 1.43:1 or 1.90:1) and steep stadium seating, with the 1.43:1 ratio format being available only in few selected locations.
The first large-format slide projectors were built in the middle of the 20th century as background projectors for theaters and opera houses. From the early 50', the german Brand Reiche&Vogel was offering in a catalog a 2000w slide projector using 4.75"x 4.75" (12x12cm) slide or a scroller for film strip of the same size.
A number of Wikipedia articles contain pro and con lists: lists of arguments for and against some particular contention or position.These take several forms, including lists of advantages and disadvantages of a technology; pros and cons of a proposal which may be as technical as Wi-Fi or otherwise; and lists of criticisms and defenses of a political position or other view (such as socialism or ...
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