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Friedrich August von Hayek was born in Vienna to August von Hayek and Felicitas Hayek (née von Juraschek). Friedrich's father, from whom he received his middle name, was also born in Vienna in 1871. He was a medical doctor employed by the municipal ministry of health, with passion in botany, in which he wrote a number of monographs. August von Hayek was also a part-time botany lecturer at the University of Vienna. Friedrich's mother was born in 1875 to a wealthy, conservative, land-owning family. As her mother died several years prior to Friedrich's birth, Felicitas gained a significant inheritance which provided as much as half of her and August's income during the early years of their marriage. Hayek was the oldest of three brothers, Heinrich (1900–69) and Erich (1904–86), who were one-and-a-half and five years younger than him.
Who was Hayek's father?
A: August von Hayek

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The official introduction of the metric system in September 1799 was unpopular in large sections of French society. Napoleon's rule greatly aided adoption of the new standard not only across France but also across the French sphere of influence. Napoleon ultimately took a retrograde step in 1812 when he passed legislation to introduce the mesures usuelles (traditional units of measurement) for retail trade—a system of measure that resembled the pre-revolutionary units but were based on the kilogram and the metre; for example the livre metrique (metric pound) was 500 g instead of 489.5 g—the value of the livre du roi (the king's pound). Other units of measure were rounded in a similar manner. This however laid the foundations for the definitive introduction of the metric system across Europe in the middle of the 19th century.
What system, introduced in September 1799, was unpopular among much of French society?
A: the metric system

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Philadelphia's central city was created in the 17th century following the plan by William Penn's surveyor Thomas Holme. Center City is structured with long straight streets running east-west and north-south forming a grid pattern. The original city plan was designed to allow for easy travel and to keep residences separated by open space that would help prevent the spread of fire. The Delaware River and Schuylkill Rivers served as early boundaries between which the city's early street plan was kept within. In addition, Penn planned the creation of five public parks in the city which were renamed in 1824 (in parenthesis): Centre Square, North East Publick Square (Franklin Square), Northwest Square (Logan Square), Southwest Square (Rittenhouse Square), and Southeast Square (Washington Square). Center City has grown into the second-most populated downtown area in the United States, after Midtown Manhattan in New York City, with an estimated 183,240 residents in 2015.
Which rivers run through the city?
A: The Delaware River and Schuylkill Rivers

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In the year 2000, according to a study by American Association of University Professors (AAUP), affirmative action promoted diversity within colleges and universities. This has been shown to have positive effects on the educational outcomes and experiences of college students as well as the teaching of faculty members. According to a study by Geoffrey Maruyama and José F. Moreno, the results showed that faculty members believed diversity helps students to reach the essential goals of a college education, Caucasian students suffer no detrimental effects from classroom diversity, and that attention to multicultural learning improves the ability of colleges and universities to accomplish their missions. Furthermore, a diverse population of students offers unique perspectives in order to challenge preconceived notions through exposure to the experiences and ideas of others. According to Professor Gurin of the University of Michigan, skills such as "perspective-taking, acceptance of differences, a willingness and capacity to find commonalities among differences, acceptance of conflict as normal, conflict resolution, participation in democracy, and interest in the wider social world" can potentially be developed in college while being exposed to heterogeneous group of students. In addition, broadening perspectives helps students confront personal and substantive stereotypes and fosters discussion about racial and ethnic issues in a classroom setting. Furthermore, the 2000 AAUP study states that having a diversity of views leads to a better discussion and greater understanding among the students on issues of race, tolerance, fairness, etc.
Who supposedly suffers a lot of detrimental effects from classroom diversity?
A:
unanswerable