Many different factors affect the density of air. Most measurably, as altitude increases, air becomes less dense, decreasing atmospheric pressure. Standard altitude-pressure tables allow ...

Medically reviewed by Arno Kroner, DAOM Altitude sickness occurs when air pressure and oxygen levels are reduced at a higher elevation, as in the mountains. It's more likely to occur if you're ...

Back home after his trip, he built this simple Temperature, Altitude and Pressure Display Device using a few off the shelf parts. Following a brief search, he zeroed in on the BMP 180 sensor ...

At this altitude the total air pressure is no longer sufficient to keep body fluids from boiling. - back to the top- Spacesuits for the space shuttle era are pressurized at 4.3 pounds per square ...

There are lots of great air pressure demonstrations around, but a leaky water bottle is one of the simplest. It looks impressive and costs almost nothing.