Island chains have predictable effects on waves and on currents.

"I'm going to have a real good handle on currents, local geography, and the shortcuts around the channel," he said.

Meanwhile, the litter spreads out to sea on little currents.

These give rise to a magnetic field that acts on other currents and moments.

But the brain is a delicate organ, and its operation depends on tiny electric currents within it.

It provides for exchange of data on currents, biological productivity and other ocean research.

They depend on currents to transport them from place to place.

In the summer, people here turn their eyes toward the heavens to watch small planes glide through the sky, floating on currents of air.

He looked at the map again, noting the markings on currents.

Cut off and adrift on currents, they would allow themselves to disappear into the silent Arctic.