That means you'll need to use less air in your tires.

If we can use air as fuel, why think about using anything else?

The idea of using air as an energy carrier is not new.

We have to use military air just to even the odds.

Trains will almost always use straight air unless conditions or equipment don't allow.

A. People use air when an item has a short shelf life or a high value per pound.

However, that was too bulky and heavy, so he used air.

To hold down energy usage, more modern buildings use less fresh air than those built earlier.

They are made elementally, using earth, air, fire and water.

Why don't they use normal air in race car tires?