Throughdrillingexperiment in 156 adjustmentWells, the drilling behaviors, cutter wear, downhole jetflowfieldand drilling effect of dragbits and roller ones were comparativelyanalyzed.
From the London-based Underground Rebel Bingo Club, which throws wild, impromptu bingo parties around the world, to a version in Philadelphia involving drag queens on roller skates, to "cosmic bingo" played under black light, bingo is crawling out of its recreation-center past.