Lab equipment under pressure includes any closed container designed to hold gases or liquids at a pressure substantially higher or lower than the ambient pressure. Examples include glassware, ...

High pressure often represents stable air, while low pressure can signify instability. On a cold, sunny day there will be a significantly higher atmospheric pressure than when a big storm is ...

At each stage of compression, the air gets hotter, and at the point where the heat and pressure are highest, some air is diverted. Some of the hot, high-pressure air, called bleed air, is sent to ...