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19 Th Century 20 Th Century
4,737 wordsPhotography is a technique of producing permanent images on sensitized surfaces by means of the photochemical action of light or other forms of radiant energy. In todays society, photography plays important roles as an information medium, as a tool in science and technology, and as an art form, and it is also a popular hobby. It is essential at every level of business and industry, being used in advertising, documentation, photojournalism, and many other ways. Scientific research, ranging from t...
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