Question: At the University of Vienna, Hayek earned doctorates in law and political science in 1921 and 1923 respectively; and he also studied philosophy, psychology, and economics. For a short time, when the University of Vienna closed, Hayek studied in Constantin von Monakow's Institute of Brain Anatomy, where Hayek spent much of his time staining brain cells. Hayek's time in Monakow's lab, and his deep interest in the work of Ernst Mach, inspired Hayek's first intellectual project, eventually published as The Sensory Order (1952). It located connective learning at the physical and neurological levels, rejecting the "sense data" associationism of the empiricists and logical positivists. Hayek presented his work to the private seminar he had created with Herbert Furth called the Geistkreis.
Is there an answer to this question: With whom did Hayek establish the Geistkreis?

Answer: Herbert Furth

Question: Aristotle noted that cranes traveled from the steppes of Scythia to marshes at the headwaters of the Nile. Pliny the Elder, in his Historia Naturalis, repeats Aristotle's observations.
Is there an answer to this question: Who repeats Aristotle's observations?

Answer: Pliny the Elder

Question: However, by the turn of the 1990s the downward trend was starting to reverse; England had been successful in the 1990 FIFA World Cup, reaching the semi-finals. UEFA, European football's governing body, lifted the five-year ban on English clubs playing in European competitions in 1990 (resulting in Manchester United lifting the UEFA Cup Winners' Cup in 1991) and the Taylor Report on stadium safety standards, which proposed expensive upgrades to create all-seater stadiums in the aftermath of the Hillsborough disaster, was published in January of that year.
Is there an answer to this question: Which ban was lifted in 1991?

Answer: unanswerable

Question: General Frossard's II Corps and Marshal Bazaine's III Corps crossed the German border on 2 August, and began to force the Prussian 40th Regiment of the 16th Infantry Division from the town of Saarbrucken with a series of direct attacks. The Chassepot rifle proved its worth against the Dreyse rifle, with French riflemen regularly outdistancing their Prussian counterparts in the skirmishing around Saarbrucken. However the Prussians resisted strongly, and the French suffered 86 casualties to the Prussian 83 casualties. Saarbrucken also proved to be a major obstacle in terms of logistics. Only one railway there led to the German hinterland but could be easily defended by a single force, and the only river systems in the region ran along the border instead of inland. While the French hailed the invasion as the first step towards the Rhineland and later Berlin, General Le Buf and Napoleon III were receiving alarming reports from foreign news sources of Prussian and Bavarian armies massing to the southeast in addition to the forces to the north and northeast.
Is there an answer to this question: What proved its worth against the Dreyse rifle?

Answer:
The Chassepot rifle