Problem: Film speed:

Relatively insensitive film, with a correspondingly lower speed index, requires more exposure to light to produce the same image density as a more sensitive film, and is thus commonly termed a slow film. Highly sensitive films are correspondingly termed fast films. In both digital and film photography, the reduction of exposure corresponding to use of higher sensitivities generally leads to reduced image quality (via coarser film grain or higher image noise of other types). In short, the higher the sensitivity, the grainier the image will be. Ultimately sensitivity is limited by the quantum efficiency of the film or sensor.

How is digital photography different from film?
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A: unanswerable


Problem: ASCII was incorporated into the Unicode character set as the first 128 symbols, so the 7-bit ASCII characters have the same numeric codes in both sets. This allows UTF-8 to be backward compatible with 7-bit ASCII, as a UTF-8 file containing only ASCII characters is identical to an ASCII file containing the same sequence of characters. Even more importantly, forward compatibility is ensured as software that recognizes only 7-bit ASCII characters as special and does not alter bytes with the highest bit set (as is often done to support 8-bit ASCII extensions such as ISO-8859-1) will preserve UTF-8 data unchanged.
ASCII was incorporated into what other character set?
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Answer: Unicode


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The most common Persian word is Masīhī (مسیحی), from Arabic.,Other words are Nasrānī (نصرانی), from Syriac for "Nazarene", and Tarsā (ترسا), from Middle Persian word Tarsāg, also meaning "Christian", derived from tars, meaning "fear, respect".
What does tars mean?
A: fear, respect


Context and question: Documentary filmmakers have studied the lives of wrestlers and the effects the profession has on them and their families. The 1999 theatrical documentary Beyond the Mat focused on Terry Funk, a wrestler nearing retirement; Mick Foley, a wrestler within his prime; Jake Roberts, a former star fallen from grace; and a school of wrestling student trying to break into the business. The 2005 release Lipstick and Dynamite, Piss and Vinegar: The First Ladies of Wrestling chronicled the development of women's wrestling throughout the 20th century. Pro wrestling has been featured several times on HBO's Real Sports with Bryant Gumbel. MTV's documentary series True Life featured two episodes titled "I'm a Professional Wrestler" and "I Want to Be a Professional Wrestler". Other documentaries have been produced by The Learning Channel (The Secret World of Professional Wrestling) and A&E (Hitman Hart: Wrestling with Shadows). Bloodstained Memoirs explored the careers of several pro wrestlers, including Chris Jericho, Rob Van Dam and Roddy Piper.
When did Beyond the Mat come out? 
Answer: 1999


Question: When power is lost in a traction elevator system, all elevators will initially come to a halt. One by one, each car in the group will return to the lobby floor, open its doors and shut down. People in the remaining elevators may see an indicator light or hear a voice announcement informing them that the elevator will return to the lobby shortly. Once all cars have successfully returned, the system will then automatically select one or more cars to be used for normal operations and these cars will return to service. The car(s) selected to run under emergency power can be manually overridden by a key or strip switch in the lobby. In order to help prevent entrapment, when the system detects that it is running low on power, it will bring the running cars to the lobby or nearest floor, open the doors and shut down.
Is there an answer to this question: What sequence of events happens when the power shuts off in a traction elevator and the elevators all stop?

Answer: One by one, each car in the group will return to the lobby floor, open its doors and shut down


Problem: Time:

The most accurate timekeeping devices are atomic clocks, which are accurate to seconds in many millions of years, and are used to calibrate other clocks and timekeeping instruments. Atomic clocks use the frequency of electronic transitions in certain atoms to measure the second. One of the most common atoms used is caesium, most modern atomic clocks probe caesium with microwaves to determine the frequency of these electron vibrations. Since 1967, the International System of Measurements bases its unit of time, the second, on the properties of caesium atoms. SI defines the second as 9,192,631,770 cycles of the radiation that corresponds to the transition between two electron spin energy levels of the ground state of the 133Cs atom.

How long has the International System of Measurements based the second on caesium?
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A:
Since 1967