How a Fountain Experiment Demonstrates Atmospheric Pressure Principles #9087 (License: Personal Use)

This black-and-white line drawing depicts a classic fountain experiment: a glass bulb connected via a narrow tube to a reservoir of liquid. When air is expelled from the tube (often by heating or suction), atmospheric pressure pushes the liquid up the tube and into the bulb, creating a fountain effect. The illustration highlights fluid dynamics and pressure differentials central to introductory physics education.

Used in educational contexts-textbooks, lab manuals, and science websites-to explain atmospheric pressure, gas laws, and hydrostatics; targets students, teachers, and curious learners seeking visual reinforcement of physical principles.