Photography is the process of making pictures by means of the action of light. Light patterns reflected or emitted from objects are recorded onto a sensitive medium or storage chip through a timed exposure. The process is done through mechanical, chemical or digital devices known as cameras.

The word comes from the Greek words φως phos ("light"), and γραφις graphis ("stylus", "paintbrush") or γραφη graphê, together meaning "drawing with light" or "representation by means of lines" or "drawing." Traditionally the product of photography has been called a photograph. The term photo is an abbreviation; many people also call them pictures. In digital photography, the term image has begun to replace photograph. (The term image is traditional in geometric optics.)

Photographic image-forming devices

---

Most commonly a camera or camera obscura is the image forming device and photographic film or a digital storage card is the recording medium, although other methods are available. For instance, the photocopy or xerography machine forms permanent images but uses the transfer of static electrical charges rather than photographic film, hence the term electrophotography. The rayographs published by Man Ray in 1922 are images produced by the shadows of objects cast on the photographic paper, without the use of a camera. Objects can be placed directly on the glass of a scanner to produce pictures digitally.

More on [ Photography ]

NPR Topics: Arts & Entertainment

Liz Phair Revisits 'Exile'
Mon, 06 Oct 2008 13:16:00 -0400
Fifteen years after she released her groundbreaking album Exile in Guyville, the femme rocker is on tour, performing the album live in front of audiences. She discusses Exile's influence on herself as well as the music industry.
Poking Fun At Stereotypes In 'Allah Made Me Funny'
Mon, 06 Oct 2008 16:25:00 -0400
A new film, Allah Made Me Funny, follows three Muslim men as they perform at comedy clubs around the U.S., chronicling how they make comedy out of sometimes painful experiences in a post-Sept. 11 America. Comedians Azhar Usman, Mo Amer and Preacher Moss discuss what informs their humor.
Is America 'Too Insular' For A Literary Nobel?
Mon, 06 Oct 2008 12:12:00 -0400
Horace Engdahl, a Nobel Prize official, commented on Wednesday that the United States is "too isolated" and "too insular" to generate literary Nobel laureates. He said Europe remains the "center of the literary world."

Subscribe to Arts_and_Entertainment RSS feed