↩ 🔵 🔵 🔵 ❪✺❫ Mechanical Concepts ○ Quantum Mechanics 𓆩⚪𓆪 ❪✺₁❫ Quantum Classes ○ ❪✺₄❫ Quantum Sets ○ ❪✺_❫ Quantum Subs ○ Bremsstrahlung ○ Compton Scattering ○ Observer Effect ○ Pair Production ○