Still struggling with the question of "who revolves around whom?" Our interactive geocentric vs. heliocentric model helps you unravel this astronomical "Rashomon" in the most engaging way! This precise 1.2-meter square mechanical model hides two completely different worldviews. By turning the handle to switch modes, you'll visually see: when the Earth "self-righteously" sits at the center, the orbits of other planets are as complex as knotted yarn; but when the Sun takes the "leader" position, the entire system suddenly becomes perfectly orderly. Adjust your perspective to observe Venus's phases—a phenomenon that once baffled ancient astronomers—becomes perfectly reasonable under the new model. Press the button to watch the theoretical animation, and you'll discover how dramatic the most famous "cognitive upgrade" in scientific history truly is. Most interestingly, you can compare the predictions of the two models and personally verify which one better matches actual observations.