Article: Holes through a PCB are typically drilled with small-diameter drill bits made of solid coated tungsten carbide. Coated tungsten carbide is recommended since many board materials are very abrasive and drilling must be high RPM and high feed to be cost effective. Drill bits must also remain sharp so as not to mar or tear the traces. Drilling with high-speed-steel is simply not feasible since the drill bits will dull quickly and thus tear the copper and ruin the boards. The drilling is performed by automated drilling machines with placement controlled by a drill tape or drill file. These computer-generated files are also called numerically controlled drill (NCD) files or "Excellon files". The drill file describes the location and size of each drilled hole.

Question: What kind of drill bit do you need to drill holes in a PCB?
Ans: coated tungsten carbide


Here is a question about this article: According to FIG rules, only women compete in rhythmic gymnastics. This is a sport that combines elements of ballet, gymnastics, dance, and apparatus manipulation. The sport involves the performance of five separate routines with the use of five apparatus; ball, ribbon, hoop, clubs, rope—on a floor area, with a much greater emphasis on the aesthetic rather than the acrobatic. There are also group routines consisting of 5 gymnasts and 5 apparatuses of their choice. Rhythmic routines are scored out of a possible 30 points; the score for artistry (choreography and music) is averaged with the score for difficulty of the moves and then added to the score for execution.
What is the answer to this question: What 5 items are used in rhythmic gymnastic routines?
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So... ball, ribbon, hoop, clubs, rope


The problem: Answer a question about this article:
However, the 18th century saw the European empires gradually expand across the world, as European states developed economies built on maritime trade. The dynasty was confronted with newly developing concepts of the international system and state to state relations. European trading posts expanded into territorial control in nearby India and on the islands that are now Indonesia. The Qing response, successful for a time, was in 1756 to establish the Canton System, which restricted maritime trade to that city and gave monopoly trading rights to private Chinese merchants. The British East India Company and the Dutch East India Company had long before been granted similar monopoly rights by their governments.
What were the economies of the European empires built on?
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The answer: maritime trade


Problem: Please answer a question about the following article about Beyoncé:
In December, Beyoncé along with a variety of other celebrities teamed up and produced a video campaign for "Demand A Plan", a bipartisan effort by a group of 950 US mayors and others designed to influence the federal government into rethinking its gun control laws, following the Sandy Hook Elementary School shooting. Beyoncé became an ambassador for the 2012 World Humanitarian Day campaign donating her song "I Was Here" and its music video, shot in the UN, to the campaign. In 2013, it was announced that Beyoncé would work with Salma Hayek and Frida Giannini on a Gucci "Chime for Change" campaign that aims to spread female empowerment. The campaign, which aired on February 28, was set to her new music. A concert for the cause took place on June 1, 2013 in London and included other acts like Ellie Goulding, Florence and the Machine, and Rita Ora. In advance of the concert, she appeared in a campaign video released on 15 May 2013, where she, along with Cameron Diaz, John Legend and Kylie Minogue, described inspiration from their mothers, while a number of other artists celebrated personal inspiration from other women, leading to a call for submission of photos of women of viewers' inspiration from which a selection was shown at the concert. Beyoncé said about her mother Tina Knowles that her gift was "finding the best qualities in every human being." With help of the crowdfunding platform Catapult, visitors of the concert could choose between several projects promoting education of women and girls. Beyoncé is also taking part in "Miss a Meal", a food-donation campaign, and supporting Goodwill charity through online charity auctions at Charitybuzz that support job creation throughout Europe and the U.S.
Beyonce is contributing to which food-donation campaign?
A: Miss a Meal


Question: Read this and answer the question

The British government was close to bankruptcy, and Britain now faced the delicate task of pacifying its new French-Canadian subjects as well as the many American Indian tribes who had supported France. George III's Proclamation of 1763, which forbade white settlement beyond the crest of the Appalachians, was intended to appease the latter but led to considerable outrage in the Thirteen Colonies, whose inhabitants were eager to acquire native lands. The Quebec Act of 1774, similarly intended to win over the loyalty of French Canadians, also spurred resentment among American colonists. The act protected Catholic religion and French language, which enraged the Americans, but the Québécois remained loyal and did not rebel.

Who was aggravated by the Proclamation of 1763?
Answer: outrage in the Thirteen Colonies, whose inhabitants were eager to acquire native lands


Examples of Ottoman architecture of the classical period, besides Istanbul and Edirne, can also be seen in Egypt, Eritrea, Tunisia, Algiers, the Balkans and Romania, where mosques, bridges, fountains and schools were built. The art of Ottoman decoration developed with a multitude of influences due to the wide ethnic range of the Ottoman Empire. The greatest of the court artists enriched the Ottoman Empire with many pluralistic artistic influences: such as mixing traditional Byzantine art with elements of Chinese art.
The ottoman empire built structures in Romania that included Mosques, and Bridges, what else was built?
fountains and schools