The discussion revolves around two key questions regarding the behavior of orbital electrons: how they can rotate indefinitely without an energy supply and how they maintain their position without collapsing into the nucleus under external pressure. Quantum theory explains that electrons occupy quantized energy levels, and once in the ground state, they do not radiate energy, thus preventing them from spiraling into the nucleus. The stability of electrons is further supported by the Pauli exclusion principle, which prevents multiple electrons from occupying the same quantum state. Additionally, the Heisenberg Uncertainty Principle clarifies that electrons cannot be precisely localized, contributing to their stability within atoms. Overall, the conversation highlights the established principles of quantum mechanics that address these long-standing questions.
"sometimes water expands on cooling and expands on heating!"