A swollen or collapsed gas container gets that way because of the change in vapor pressure inside it. It looks dangerous, but ...

Pioneering scientists discovered atmospheric pressure (also known as barometric ... For one thing, water molecules have less mass than other gas molecules in air; so as water vapor increases ...

The Irish scientist Robert Boyle investigated the relationship between pressure and volume in the 17th century. He trapped a bubble of air at the sealed end of a J-shaped tube using liquid mercury.

When a gas is cooled, the particles have less kinetic ... the air pressure is only around 33,700 Pa approximately one third of the atmospheric pressure at sea level. Altitude sickness is a ...

Earth's atmosphere is 20 percent oxygen and ... dissolved in body fluids and thereby to prevent its release as gas bubbles when pressure is reduced, a condition commonly called "the bends." ...

Europe is set for a colder-than-usual January, possibly with weaker wind levels, boosting demand for natural gas just as the ...