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Synchronous generators generate electricity at 50 Hz (60 Hz in the U.S.). When driven by steam turbines at high speeds, they are called turbogenerators, while those powered by water at lower speeds are hydrogenerators. Large motors for load management are usually induction motors with squirrel cage construction. Initially, isolated prime-mover generator sets were used, with later advancements introducing synchronization and parallel operation of alternators. Over time, power stations were linked to form power pools, which eventually connected into large, complex grid systems. Engineers have...

Bangladesh in 1971 showed vividly, and terribly, the deadly effects of war. Piles of corpses, torture cells, ash and destruction everywhere in the wake of the Pakistani army's attacks on Bengali people. Blue Venom and Forbidden Incense, two novellas by Bangladeshi writer Syed Shamsul Haq, bear bleak witness to the mindless violence and death of that period. Blue Venom tells of a middle-aged middle manager who is arrested and taken to a cell, where he is slowly tortured to death for being a namesake of a rebel poet Kazi Nazrul Islam. Forbidden Incense, meanwhile,...