gęstość powietrza

We all felt a bit giddy, from changing air density, I guess.

Again, the fan will pump the same volume, though not mass, at any other air density.

"Shouldn't we set the air density inside the box to what it was where we found him?"

In addition to air density, humidity can have an effect on certain materials.

This means that the higher the air pressure, the greater the air density.

Pudding more or less described the increased air density, he thought.

In hot and high areas where air density is much lower, performance will be different, with faster descents.

Molecular compression was quickly developed here because of the natural air density.

At any rate, air density decreases the higher you go up.

The air density at each deck followed the same pattern.