Problem: Film speed is found from a plot of optical density vs. log of exposure for the film, known as the Dlog H curve or HurterDriffield curve. There typically are five regions in the curve: the base + fog, the toe, the linear region, the shoulder, and the overexposed region. For black-and-white negative film, the "speed point" m is the point on the curve where density exceeds the base + fog density by 0.1 when the negative is developed so that a point n where the log of exposure is 1.3 units greater than the exposure at point m has a density 0.8 greater than the density at point m. The exposure Hm, in lux-s, is that for point m when the specified contrast condition is satisfied. The ISO arithmetic speed is determined from:
What is the plot from which film speed is derived called?
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Answer: the Dlog H curve or HurterDriffield curve

Problem: Greek art has a long and varied history. Greeks have contributed to the visual, literary and performing arts. In the West, ancient Greek art was influential in shaping the Roman and later the modern western artistic heritage. Following the Renaissance in Europe, the humanist aesthetic and the high technical standards of Greek art inspired generations of European artists. Well into the 19th century, the classical tradition derived from Greece played an important role in the art of the western world. In the East, Alexander the Great's conquests initiated several centuries of exchange between Greek, Central Asian and Indian cultures, resulting in Greco-Buddhist art, whose influence reached as far as Japan.
What enacted the transactions of customs and ways of life for the people of the Asian continent and the Grecian people ?
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Answer: In the East, Alexander the Great's conquests initiated several centuries of exchange between Greek, Central Asian and Indian cultures

Problem: The Total Force Policy was adopted by Chief of Staff of the Army General Creighton Abrams in the aftermath of the Vietnam War and involves treating the three components of the army the Regular Army, the Army National Guard and the Army Reserve as a single force. Believing that no U.S. president should be able to take the United States (and more specifically the U.S. Army) to war without the support of the American people, General Abrams intertwined the structure of the three components of the army in such a way as to make extended operations impossible, without the involvement of both the Army National Guard and the Army Reserve.
What war was responsible for the recall of the Total Force Policy?
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Answer:
unanswerable