"If things are humming, they don't need to reach."

The things were humming softly to themselves and throbbing with a bright yellow light.

In the tiny temporary office, things are not humming, but roaring.

Most things are humming along, they say, and more money will flow by midsummer or fall.

The thing they had come for was humming.

The thing hummed for a while and then suddenly a heavy volume of sound began to pour out of the speaker.

The pyramids are mounds of dead rock; this thing will hum with power.

By then, five more workers had returned to their post and things were humming.

In the main building things hummed and clicked and flashed.

Well, let's get going-we've got to make things hum for a while!