Sentence examples for changes in air density from inspiring English sources

During the eclipse, the astronomers also observed sudden spikes in the brightness of the starlight that result from sudden changes in air density.

This predicted increase in power is a result of changes in air density and partial pressure of oxygen with increasing altitude [5] [6], [14] [16].

Another thermal effect needs a serious evaluation: the changes in air temperature and density, moving from one location to another.

Watada et al. (2006) explained the observed pressure change by (air density) × (sound velocity in air) × (ground vertical velocity).

With thermal performance separated from flow prediction, assumption of isothermal air is reasonable; density and viscosity variation associated with the small changes in air temperature in a real WHRS could be considered negligible.

"I've yet to see anything to suggest that the ball is behaving erratically, but the change in altitude and air density — 20 percent between Cape Town and Johannesburg — will make a difference," said Steve Haake, professor of sports engineering at Sheffield Hallam University in England.

• Abrupt changes in air pressure.

Even over the fairly limited course of a V-2 trajectory (with a range of approximately 200 miles and an altitude of roughly 50 miles), changes in missile velocity and air density produced drastic shifts in the distance between the centre of gravity and the centre of aerodynamic pressure.

A change in air pressure.

In addition, the air density is about 100,000 times less at the altitude involved, so the heat transfer is different.

Upon ascent to natural altitude, changes in these variables will have a proportionate effect on air density (air density reduces by about 10% for every 1000 m increase in altitude) and, consequently, physical performance and player behaviour.