How to explain Matter.

This part aims to solve the fundamental enigma: What is matter? To do so, it follows a three-step approach based on well-established scientific concepts.

• Wave-Particle Duality
  The first step is understanding the dual nature of particles, which behave both as waves and as corpuscles. This duality is explained in a rational and scientific way.
• Speed of Light
  The second section explores why the speed of light remains constant — a central question in modern physics. The site offers an explanation grounded in experimental principles.
• Nature of Spacetime and Matter
  Drawing on well-known experiments, the following pages describe the structure of spacetime. These deductions are then extended to matter, ultimately answering the question: What is the constitution of particles?

The site emphasizes that it introduces no new inventions: all the experiments and deductions presented are already familiar to physicists, although they are not always widely accepted

The conclusions reached are considered surprising and require clarification. A final page synthesizes the previous sections to present a coherent explanation of the structure of matter.

Based on scientific experimentation, this second part of the "Spacetime Model" claims to answer not only "What is matter?" but also a deeper question: "How does the universe function?".