Interpreting Einstein's Spacetime Curvature through Bubble-Based Visualization - Mahimai Balan D

Conventional analogies used to describe Einstein’s General Relativity—such as the “trampoline model” offer only two-dimensional and gravitationally biased interpretations of spacetime curvature. This paper introduces the Bubble Model, a three-dimensional conceptual framework based on the behavior of gas spheres in water, offering a more intuitive way to visualize curvature as a dynamic equilibrium between density and volume. The model proposes that curvature intensity is influenced not merely by total mass but by the spatial distribution and density of energy. By comparing the bubble system’s density gradients, internal pressures, and merger dynamics with Einstein’s field equations, the Bubble Model highlights a fluid-dynamic reinterpretation of curvature. This analogy bridges physical intuition with mathematical abstraction and demonstrates why planets and gravitational bodies naturally adopt spherical forms.