Question: Split-screen 3D educational animation. Top half shows a slinky spring pushed forward and backward along its length, creating moving dense regions labeled 'Compressions' and spread regions labeled 'Rarefactions'. Bottom half shows space between the Sun and Earth. Sound waves attempt to travel through space vacuum but disappear with a red prohibition cross. Visible light waves radiate smoothly across the vacuum of space at $c = 3 \times 10^{8}$ m/s. Text overlays: "Longitudinal vs Transverse" and "Mechanical vs Electromagnetic".

1. The problem illustrates the difference between longitudinal and transverse waves, and mechanical versus electromagnetic waves. 2. Longitudinal waves, like sound waves, involve oscillations parallel to the direction of wave propagation, creating compressions and rarefactions. 3. Transverse waves, like visible light, oscillate perpendicular to the direction of propagation and can travel through a vacuum. 4. Mechanical waves require a medium to travel through, so sound cannot propagate through the vacuum of space. 5. Electromagnetic waves, such as visible light, travel at the speed of light $c = 3 \times 10^{8}$ m/s in vacuum. 6. This animation visually contrasts these wave types and their propagation characteristics.