Earth's Spacetime in Ancestral Astronomy
To read this article in Portuguese, click here. We live with concepts originating from astronomy in our daily lives without even realizing it. Our clock is one such example, corresponding to a solar day—the complete cycle of Earth's rotation. The best way to understand the concept of Earth's spacetime is through the structure of the clock. It is the instrument that relates the two coordinates of Time and Space, common in astronomy and in daily life on Earth. The clock illustrates, step by step, Earth's path through space and time during its rotational movement.