With strings, a tremendous amount of work had been put into pieces to extract beauty from the air.

The water was not cold, but it tasted fresh and sweet compared to that extracted from the air.

In normal use the dumbwaiter extracted all its molecules from the air around it, but Silver had a big appetite.

They at least generate their own muscular energy by extracting heat from the air they breathe.

"All that smoke helped them to extract more oxygen from the air," Carmody said with a laugh.

"Your new machine for extracting helium from the air!"

The hope is that by 2020, Britain will have installed two million "heat pumps" to extract warmth from the air and soil.

More nitrogen is provided by bacteria that extract it from the air.

The energy extracted from the air passing through the turbine is used to power the compressor.

It's a disk in space where fluid energy is simply extracted from the air.