Article: Most types of capacitor include a dielectric spacer, which increases their capacitance. These dielectrics are most often insulators. However, low capacitance devices are available with a vacuum between their plates, which allows extremely high voltage operation and low losses. Variable capacitors with their plates open to the atmosphere were commonly used in radio tuning circuits. Later designs use polymer foil dielectric between the moving and stationary plates, with no significant air space between them.

Question: What do many capacitors contain that raises the capacitance?
Ans: a dielectric spacer

Article: Adults have a meringue battle at midnight at the historic Placa de les Cols. In the mysterious sortida del Moixo Foguer (the outing of Little-Bird-Bonfire) accompanied by the Xerraire (jabberer) who insults the crowd. In the King's precession he and his concubines scandalize the town with their sexual behavior. A correfoc (fire run) or Devil's dance (Ball de diables, features dancing youth amid the sparks and explosions of the ritual crew of devils. Other items includes bed races in the streets, the debauched Nit dels Mascarots, Karaoke sausage roasts, xatonades, the children's party, Vidalet, the last night of revelry, Vidalot, the talking-dance of the Mismatched Couples (Ball de Malcasats) and the children's King Caramel whose massive belly, long nose and sausage-like hair hint at his insatiable appetites.

Question: Who throws insults at the crowd?
Ans: the Xerraire

Article: In 1955, von Neumann became a commissioner of the AEC. He accepted this position and used it to further the production of compact hydrogen bombs suitable for Intercontinental ballistic missile delivery. He involved himself in correcting the severe shortage of tritium and lithium 6 needed for these compact weapons, and he argued against settling for the intermediate range missiles that the Army wanted. He was adamant that H-bombs delivered into the heart of enemy territory by an ICBM would be the most effective weapon possible, and that the relative inaccuracy of the missile wouldn't be a problem with an H-bomb. He said the Russians would probably be building a similar weapon system, which turned out to be the case. Despite his disagreement with Oppenheimer over the need for a crash program to develop the hydrogen bomb, he testified on the latter's behalf at the 1954 Oppenheimer security hearing, at which he asserted that Oppenheimer was loyal, and praised him for his helpfulness once the program went ahead.

Question: In what year did von Neumann become commissioner of the AEC?
Ans: 1955

Article: Jiangsu Province Kun Opera is one of the best theatres for Kunqu, China's oldest stage art. It is considered a conservative and traditional troupe. Nanjing also has professional opera troupes for the Yang, Yue (shaoxing), Xi and Jing (Chinese opera varieties) as well as Suzhou pingtan, spoken theatre and puppet theatre.

Question: What other types of theater performance are seen in Nanjing?
Ans:
Suzhou pingtan, spoken theatre and puppet theatre