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Upon exposure, the amount of light energy that reaches the film determines the effect upon the emulsion. If the brightness of the light is multiplied by a factor and the exposure of the film decreased by the same factor by varying the camera's shutter speed and aperture, so that the energy received is the same, the film will be developed to the same density. This rule is called reciprocity. The systems for determining the sensitivity for an emulsion are possible because reciprocity holds. In practice, reciprocity works reasonably well for normal photographic films for the range of exposures between 1/1000 second to 1/2 second. However, this relationship breaks down outside these limits, a phenomenon known as reciprocity failure.
Reciprocity only works outside of what ranges?
A: unanswerable

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Hokkien has one of the most diverse phoneme inventories among Chinese varieties, with more consonants than Standard Mandarin or Cantonese. Vowels are more-or-less similar to that of Standard Mandarin. Hokkien varieties retain many pronunciations that are no longer found in other Chinese varieties. These include the retention of the /t/ initial, which is now /tʂ/ (Pinyin 'zh') in Mandarin (e.g. 'bamboo' 竹 is tik, but zhú in Mandarin), having disappeared before the 6th century in other Chinese varieties.
In Hokkien how do the type of diverse phoneme compare to Standard Mandarin?
A: unanswerable

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The Houston–The Woodlands–Sugar Land MSA's gross domestic product (GDP) in 2012 was $489 billion, making it the fourth-largest of any metropolitan area in the United States and larger than Austria's, Venezuela's, or South Africa's GDP. Only 26 countries other than the United States have a gross domestic product exceeding Houston's regional gross area product (GAP). In 2010, mining (which consists almost entirely of exploration and production of oil and gas in Houston) accounted for 26.3% of Houston's GAP up sharply in response to high energy prices and a decreased worldwide surplus of oil production capacity, followed by engineering services, health services, and manufacturing.
ow many other countries have a gross domestic product exceeding Texas's?
A: unanswerable

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Calvary as an English name for the place is derived from the Latin word for skull (calvaria), which is used in the Vulgate translation of "place of a skull", the explanation given in all four Gospels of the Aramaic word Gûlgaltâ which was the name of the place where Jesus was crucified. The text does not indicate why it was so designated, but several theories have been put forward. One is that as a place of public execution, Calvary may have been strewn with the skulls of abandoned victims (which would be contrary to Jewish burial traditions, but not Roman). Another is that Calvary is named after a nearby cemetery (which is consistent with both of the proposed modern sites). A third is that the name was derived from the physical contour, which would be more consistent with the singular use of the word, i.e., the place of "a skull". While often referred to as "Mount Calvary", it was more likely a small hill or rocky knoll.
On top of what formation was the Roman empire located?
A:
unanswerable