[Q]: [Hewasanardentcollectorofancientmaps,concerningwhichhewassomewhatofanexpert.]
[A]: [He was an ardent collector of ancient maps, concerning which he was somewhat of an expert.]
[Q]: [Alongwiththeintroductionofslotmachinescametheeventualcrackdownonthegamblingphenomenonbylocalpolice.Raidswouldensueandslotmachinesconfiscated.Itwasn'tlongbeforetheactionwasmovedtothebackroomsoftaverns,barsandclubs.]
[A]: [Along with the introduction of slot machines came the eventual crackdown on the gambling phenomenon by local police. Raids would ensue and slot machines confiscated. It wasn't long before the action was moved to the backrooms of taverns, bars and clubs.]
[Q]: [Asteadyrotorinturnmeansthattheforwardspeedandhenceoutputcanbesubstantiallyincreased.]
[A]:
[A steady rotor in turn means that the forward speed and hence output can be substantially increased.]