E(total) = constant
"Energy cannot be created or destroyed. That is the First Law of Thermodynamics."
Some students nodded. They already knew this.
"But think about what that truly means. If energy is never created or destroyed, only transformed—then isn't every reaction, every movement, every shift in energy part of a grand, ongoing cycle? A motion that never truly stops?"
A few students looked intrigued.
She continued, voice steady, deliberate.
"The universe itself is in constant motion. Stars are born, burn, collapse into black holes, and scatter matter back into space—forming the very seeds of new stars. Galaxies swirl in a cosmic dance that has been happening for billions of years. Electrons orbit atomic nuclei, never stopping. Planets revolve around stars, stars revolve around galactic centers, galaxies revolve within clusters. The cycle is endless."
She leaned on the podium, her fingers tapping lightly.
