High above, the entire sky had become black, and currents of air were beginning to surge.

And currents should begin an aggrading action now - dropping sediment - rather than degrading.

From the 9th century BC the third and fourth cultural currents began to appear in the West.

But curiously, both currents may have begun shifting in favor of an accord.

The currents began to flow through superconducting struts and cables.

The current of Gladstone's retinue and impending events began to sweep her away down the hall.

At the same time, the great, deep currents of the conflict began to reveal themselves.

But only when the show began did the most fascinating currents of modern circus begin to show themselves to the attentive observer.

Down from the north the powerful arctic currents began to move their grinding, roaring avalanches.

Scott attempted to swim towards San Francisco, but the currents began pulling him out to sea.