Problem: Solar concentrating technologies such as parabolic dish, trough and Scheffler reflectors can provide process heat for commercial and industrial applications. The first commercial system was the Solar Total Energy Project (STEP) in Shenandoah, Georgia, USA where a field of 114 parabolic dishes provided 50% of the process heating, air conditioning and electrical requirements for a clothing factory. This grid-connected cogeneration system provided 400 kW of electricity plus thermal energy in the form of 401 kW steam and 468 kW chilled water, and had a one-hour peak load thermal storage. Evaporation ponds are shallow pools that concentrate dissolved solids through evaporation. The use of evaporation ponds to obtain salt from sea water is one of the oldest applications of solar energy. Modern uses include concentrating brine solutions used in leach mining and removing dissolved solids from waste streams. Clothes lines, clotheshorses, and clothes racks dry clothes through evaporation by wind and sunlight without consuming electricity or gas. In some states of the United States legislation protects the "right to dry" clothes. Unglazed transpired collectors (UTC) are perforated sun-facing walls used for preheating ventilation air. UTCs can raise the incoming air temperature up to 22 C (40 F) and deliver outlet temperatures of 4560 C (113140 F). The short payback period of transpired collectors (3 to 12 years) makes them a more cost-effective alternative than glazed collection systems. As of 2003, over 80 systems with a combined collector area of 35,000 square metres (380,000 sq ft) had been installed worldwide, including an 860 m2 (9,300 sq ft) collector in Costa Rica used for drying coffee beans and a 1,300 m2 (14,000 sq ft) collector in Coimbatore, India, used for drying marigolds.
What are some examples of solar concentrating technologies?
The answer is the following: parabolic dish, trough and Scheffler reflectors

Problem: The contacts gained through university and American Assembly fund-raising activities would later become important supporters in Eisenhower's bid for the Republican party nomination and the presidency. Meanwhile, Columbia University's liberal faculty members became disenchanted with the university president's ties to oilmen and businessmen, including Leonard McCollum, the president of Continental Oil; Frank Abrams, the chairman of Standard Oil of New Jersey; Bob Kleberg, the president of the King Ranch; H. J. Porter, a Texas oil executive; Bob Woodruff, the president of the Coca-Cola Corporation; and Clarence Francis, the chairman of General Foods.
From where did H.J. Porter hale?
The answer is the following: Texas

Problem: Between AD 300 and 1300 in the northern part of the state along the wide, fertile valley on the San Miguel River the Casas Grandes (Big Houses) culture developed into an advanced civilization. The Casas Grandes civilization is part of a major prehistoric archaeological culture known as Mogollon which is related to the Ancestral Pueblo culture. Paquime was the center of the Casas Grandes civilization. Extensive archaeological evidence shows commerce, agriculture, and hunting at Paquime and Cuarenta Casas (Forty Houses).
Which prehistoric culture did Casas Grandes stem from?
The answer is the following: Mogollon

Problem: Comprehensive schools have been accused of grade inflation after a study revealed that Gymnasium senior students of average mathematical ability found themselves at the very bottom of their class and had an average grade of "Five", which means "Failed". Gesamtschule senior students of average mathematical ability found themselves in the upper half of their class and had an average grade of "Three Plus". When a central Abitur examination was established in the State of North Rhine-Westphalia, it was revealed that Gesamtschule students did worse than could be predicted by their grades or class rank. Barbara Sommer (Christian Democratic Union), Education Minister of North Rhine-Westphalia, commented that: Looking at the performance gap between comprehensives and the Gymnasium [at the Abitur central examination] [...] it is difficult to understand why the Social Democratic Party of Germany wants to do away with the Gymnasium. [...] The comprehensives do not help students achieve [...] I am sick and tired of the comprehensive schools blaming their problems on the social class origins of their students. What kind of attitude is this to blame their own students? She also called the Abitur awarded by the Gymnasium the true Abitur and the Abitur awarded by the Gesamtschule "Abitur light". As a reaction, Sigrid Beer (Alliance '90/The Greens) stated that comprehensives were structurally discriminated against by the government, which favoured the Gymnasiums. She also said that many of the students awarded the Abitur by the comprehensives came from "underprivileged groups" and sneering at their performance was a "piece of impudence".
Which party does Sigrid Beer belong to?
The answer is the following:
Alliance '90/The Greens