We all deal with engines, so we should know about their relationship with air pressure and density. Query any serious bracket racer, and you'll find he's become a virtual closet meteorologist.

We all deal with engines, so we should know about their relationship with air pressure and density. Query any serious bracket racer, and you'll find he's become a virtual closet meteorologist.

A barometer also monitors variations in atmospheric pressure. As air becomes thinner, the density of air decreases, and so too does the pressure of air. Many different factors affect the density ...

More pressure also causes a higher air molecule density—that is, more molecules are forced into a smaller space. This is why athletes tend to perform better at sea level: each breath of air ...

However, sometimes the actual pressure is different because of weather conditions. This differential affects air density and how the aircraft performs. If the air density is higher, the aircraft ...

causing its density and consequently its air pressure to decrease. Changes in elevation cause air pressure to change because air pressure at any given level is the weight of the air above you.

To prove the point, he took standard air temperature, pressure and relative humidity measurements to calculate the air density at a wind farm in Hungary over a period from 2004 to 2006.

The pressure of the air molecules changes as we move upward from sea level into the atmosphere. The highest pressure is at sea level where the density of the air molecules is the greatest.