Article: Roughly one quarter of all zinc output in the United States (2009), is consumed in the form of zinc compounds; a variety of which are used industrially. Zinc oxide is widely used as a white pigment in paints, and as a catalyst in the manufacture of rubber. It is also used as a heat disperser for the rubber and acts to protect its polymers from ultraviolet radiation (the same UV protection is conferred to plastics containing zinc oxide). The semiconductor properties of zinc oxide make it useful in varistors and photocopying products. The zinc zinc-oxide cycle is a two step thermochemical process based on zinc and zinc oxide for hydrogen production.

Question: Why is zinc oxide useful in photocopying products?
Ans: semiconductor


Article: The word madrasah derives from the triconsonantal Semitic root د-ر-س D-R-S 'to learn, study', through the wazn (form/stem) مفعل(ة)‎; mafʻal(ah), meaning "a place where something is done". Therefore, madrasah literally means "a place where learning and studying take place". The word is also present as a loanword with the same innocuous meaning in many Arabic-influenced languages, such as: Urdu, Bengali, Hindi, Persian, Turkish, Azeri, Kurdish, Indonesian, Malay and Bosnian / Croatian. In the Arabic language, the word مدرسة madrasah simply means the same as school does in the English language, whether that is private, public or parochial school, as well as for any primary or secondary school whether Muslim, non-Muslim, or secular. Unlike the use of the word school in British English, the word madrasah more closely resembles the term school in American English, in that it can refer to a university-level or post-graduate school as well as to a primary or secondary school. For example, in the Ottoman Empire during the Early Modern Period, madaris had lower schools and specialised schools where the students became known as danişmends. The usual Arabic word for a university, however, is جامعة (jāmiʻah). The Hebrew cognate midrasha also connotes the meaning of a place of learning; the related term midrash literally refers to study or learning, but has acquired mystical and religious connotations.

Question: What is the literal translation of madrasah?
Ans: a place where learning and studying take place


Article: Although unpleasantness is an essential part of the IASP definition of pain, it is possible to induce a state described as intense pain devoid of unpleasantness in some patients, with morphine injection or psychosurgery. Such patients report that they have pain but are not bothered by it; they recognize the sensation of pain but suffer little, or not at all. Indifference to pain can also rarely be present from birth; these people have normal nerves on medical investigations, and find pain unpleasant, but do not avoid repetition of the pain stimulus.

Question: IASP's definition of pain includes what aspect as an essential part?
Ans: unpleasantness


Article: Poultry is available fresh or frozen, as whole birds or as joints (cuts), bone-in or deboned, seasoned in various ways, raw or ready cooked. The meatiest parts of a bird are the flight muscles on its chest, called "breast" meat, and the walking muscles on the legs, called the "thigh" and "drumstick". The wings are also eaten (Buffalo wings are a popular example in the United States) and may be split into three segments, the meatier "drumette", the "wingette" (also called the "flat"), and the wing tip (also called the "flapper"). In Japan, the wing is frequently separated, and these parts are referred to as 手羽元 (teba-moto "wing base") and 手羽先 (teba-saki "wing tip").

Question: Are certain parts of the bird used for particular reasons in relation to receipes?
Ans:
wings are also eaten (Buffalo wings are a popular example in the United States) and may be split into three segments,