Fundamentals of Phenomena
Papers and articles on the basic, recurring patterns nature uses to build things — shapes, structures, and behaviors that show up again and again across wildly different scales and materials. Not every entry here is about Pressure-Based Theory specifically; some are just real, well-documented physical patterns worth having a durable home for. Where an entry connects to PBT directly, that connection is called out explicitly rather than implied. See Recognizing Similarities in the Universe for a related look at cross-scale patterns, and the Catalog for how the underlying physics in each entry is classified.
Spheres in Nature: Why the Same Shape Keeps Showing Up
Soap Bubbles in Air: Conditions for Formation and Sustainment
Air Bubbles in Water: Conditions for Formation and Sustainment
Water Droplets in Air: Conditions for Formation and Sustainment
States of Matter: What Makes a State a State
Critical Thresholds: The Sharp Lines That Aren't Phase Boundaries