Smaller area can mean larger pressure
The same force concentrated on less area produces greater pressure.
Atmospheric pressure comes from air
Air has mass and its molecules collide with surfaces.
Liquid pressure changes with depth
Deeper fluid has more fluid above it, increasing pressure.
Pressure differences drive flow
Air and liquids move in response to pressure differences when pathways are available.
Source trail: NOAA: weather & atmosphere
This page explains scientific concepts for general learning. It does not replace laboratory safety procedures, professional engineering guidance, or individualized medical advice.