In the paper titled 'A Hypothesis: Electromagnetic Waves Can Be Represented as Continuous Long String Vibrations,' we explore the relationship between string vibration waves and electromagnetic waves. We find that when the constituent element mass and energy of both wave types are equal over one wave period, the velocity of the string vibration wave is the constant speed of light. This leads to the proposition that "electromagnetic waves are formed by the vibration of a homogeneous long string material." Building on this theory, the paper further examines the process of particle formation, introducing a new model that posits that particles are created through the winding and compression of electromagnetic wave-forming vibrating strings. Energy is transmitted between particles, objects, and celestial bodies through strings that extend and intertwine. This model elucidates the relationship between mass and energy conversion, provides insights into the formation of matter waves, and explains why "electrons have radius but no volume." In this model, electromagnetic wave propagation adheres to the principle of constant light speed. After discussion, it is proposed that the tension of the string increases in a high-curvature state after winding, which can generate strong forces.Gravity arises from the low-frequency collisions of strings and their low-frequency tension effects. Electromagnetic forces result from high-frequency collisions of strings, as well as the effects of high-frequency tension.The intersections of strings serve as energy transmission channels, allowing us to construct a gravitational formula based on these low-frequency collision points.We propose that black holes form from the dense winding of strings. Dark matter, like ordinary matter, is composed of strings, while ordinary matter consists of strings wound together. When these strings unwind, they transform into dark matter. We further deduce the differences between dark energy—resulting from the longitudinal compression and bending of strings—and ordinary energy, which stems from the transverse vibration of strings. The paper also discusses the causes of the accelerated expansion of the universe and offers an explanation of inertia based on our model. We assert that matter is space, space is matter, and that strings represent the fundamental components constituting three-dimensional space. Future studies will continue to explore the potential for quantifying gravity and developing a unified field theory of physical forces.