Question: A major turning point in the development of DC machines took place in 1864, when Antonio Pacinotti described for the first time the ring armature with its symmetrically grouped coils closed upon themselves and connected to the bars of a commutator, the brushes of which delivered practically non-fluctuating current. The first commercially successful DC motors followed the invention by Zénobe Gramme who, in 1871, reinvented Pacinotti's design. In 1873, Gramme showed that his dynamo could be used as a motor, which he demonstrated to great effect at exhibitions in Vienna and Philadelphia by connecting two such DC motors at a distance of up to 2 km away from each other, one as a generator. (See also 1873 : l'expérience décisive [Decisive Workaround] .)
Is there an answer to this question: Besides a motor, what did Gramme use the other device for?

Answer: generator


Question: Although there is evidence of scattered Brythonic settlements in the area, the first major settlement was founded by the Romans after the invasion of 43 AD. This lasted only until around 61, when the Iceni tribe led by Queen Boudica stormed it, burning it to the ground. The next, heavily planned, incarnation of Londinium prospered, and it superseded Colchester as the capital of the Roman province of Britannia in 100. At its height in the 2nd century, Roman London had a population of around 60,000.
Is there an answer to this question: Who invaded and destroyed the first major settlement of Roman London in 61 AD?

Answer: the Iceni tribe


Question: The Prime Minister has the right to appoint a maximum of three such ministers, as the limit of ministers in one government is fifteen. It is also known as the cabinet. The cabinet carries out the country's domestic and foreign policy, shaped by parliament; it directs and co-ordinates the work of government institutions and bears full responsibility for everything occurring within the authority of executive power. The government, headed by the Prime Minister, thus represents the political leadership of the country and makes decisions in the name of the whole executive power.
Is there an answer to this question: What major responsibility does the cabinet hold?

Answer: everything occurring within the authority of executive power


Question: All of these elements struck a chord with the older readers, such as college-aged adults, and they successfully gained in a way not seen before. In 1965, Spider-Man and the Hulk were both featured in Esquire magazine's list of 28 college campus heroes, alongside John F. Kennedy and Bob Dylan. In 2009 writer Geoff Boucher reflected that, "Superman and DC Comics instantly seemed like boring old Pat Boone; Marvel felt like The Beatles and the British Invasion. It was Kirby's artwork with its tension and psychedelia that made it perfect for the times—or was it Lee's bravado and melodrama, which was somehow insecure and brash at the same time?"
Is there an answer to this question: Which DC superhero was listed in Esquire's top 28 college campus heroes?

Answer:
unanswerable