Traditionally, car tires have been filled with compressed air. Air is 78 percent nitrogen and just under 21 percent oxygen, and the rest is water vapor, CO2, and small concentrations of noble gases ...

Not only are they dealing with rising temperatures and extreme weather events, but they are also under pressure to reduce use of chemical fertilizers. Nitrogen ... who plans to test this new ...

The breathing gas used was heliox – a mixture of oxygen and helium – the ratio of which the DLR team continuously adapted to the changing pressure conditions. When diving, helium serves as a ...

First off, dry air is 78 percent ... over an entire year. “Our test showed that while nitrogen has some advantages, both ...