This paper introduces the main energy saving technologies of centrifugal pump.And the author proposes a new energy saving technology which is called prerotation regulated by the inlet guide vane.
Orwell feared we would become a captive culture.Huxley feared we would become a trivial culture, preoccupied with some equivalent of the feelies, the orgy porgy, and the centrifugal bumblepuppy.
Next, once you see the centrifugal forces against openness and you see the path ahead, you realize this is something that happens only by continuous practice, by habit.